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SLP Exhaust Systems


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About SLP

  • Since 2001, LMPerformance has worked closely with SLP Performance to offer customers a wide range of performance enhancements to the American muscle car, perhaps the best known of which is its loudmouth exhaust systems. With our SLP line we have helped customers transform late-model rides into modern musclecars like the Camaro SS and Pontiac Firehawk. What initially impressed LMPerformance was SLP being the first company in the performance aftermarket to develop and manufacture a 50-state emission-legal performance package -- specifically for V8 Camaros and Firebirds. LMPerformance carries SLP's best-in-class performance upgrades in the following product categories: TVS Supercharger Packages, Blackwing Cold Air Intakes, Loudmouth Exhausts, Powerflo Headers, SLP Accessories, SLP Suspension, SLP Brake Kits,SLP Wheels.

    The range of applications offered by us with the SLP line is equally as wide. Below is just a partial list: Chevy Camaro,Corvette, GM/GMC Trucks and SUVs, Pontiac Firebird, GTP, G8, GXP and GTO, Ford Mustang and F-150, Dodge Challenger, Charger, Magnum and 300.

    Established in 1987, SLP has stood for quality performance enhancements for late-model American Muscle cars from the beginning and it continues to work with vehicle manufacturers. LMPerformance with the above mentioned product lines and parts carries SLP’s entire selection of dyno-tested engine components, exhaust systems, and bolt-on power adders, plus the dress up accessories and incredible wheels your car or truck needs. We are impressed in how only SLP combines this level of OEM quality and aftermarket performance.

    We quote SLP's initial claim to fame which says it all: True to its name ("Street Legal Performance"), and their vision of SLP's part program is "to not just provide performance, but to do so with the best engineering practices and quality possible, far exceeding the industry standards".


This selection shows some of the newest Exhaust Systems. Please select from the Car Manufacturers above to begin finding Exhaust Systems for your vehicle, or if you see what you are looking for below you may choose the item below as a shortcut.

Newest SLP Exhaust Systems




SLP Mustang Loudmouth II Axle-back 2015 5.0L

Was: $529.99
Now: $509.99
(Free Shipping)





SLP Mustang Loudmouth Axle-back 2015 5.0L

Was: $415.99
Now: $399.99
(Free Shipping)





SLP Loudmouth II Exhaust Camaro V8 2010-14 Axle-Back System for Ground Effects Package (OPEN BOX)

Was: $549.95
Now: $449.95
(Free Shipping)





SLP Exhaust System, 2009-12 Avalanche / Suburban / Yukon XL "PowerFlo®" w/Dual-Dual Tip (single-sided)

Was: $599.95
Now: $575.95
(Free Shipping)





SLP Exhaust System, 2009-12 Avalanche / Suburban / Yukon XL "PowerFlo®" w/Dual-Dual Tip (single-sided)

Was: $599.95
Now: $575.95
(Free Shipping)





SLP Exhaust System, 2009-12 Avalanche / Suburban / Yukon XL "PowerFlo®" w/Dual-Dual Tip (single-sided)

Was: $599.95
Now: $575.95
(Free Shipping)





SLP Exhaust System, 2009-12 Avalanche / Suburban / Yukon XL "PowerFlo®" w/Dual Trapezoidal Tips

Was: $799.95
Now: $767.95
(Free Shipping)





SLP Exhaust System, 2009-12 Avalanche / Suburban / Yukon XL "PowerFlo®" w/Dual Trapezoidal Tips

Was: $799.95
Now: $767.95
(Free Shipping)




SLP Reviews

Manufacturer Reviews:

3 Stars
Fitment not the best, Review Date: 8/20/2014

SLP Y-pipe for Firebird 2000-02 V8


By: Nancy
Ownership: 1 day - 1 week

Review:
The pipe is certainly a nicer than the stock y-pipe. It's supposed to fit without any issues on my 2002 TA. The holes for the flanges to connect to the catalytic converters are too far apart and had to grind the inner so it would fit like it's supposed to. The outlet is shorter than the stock y-pipe. Going to bring this to an exhaust shop and let them fiddle with it and get it to fit properly. It will be nice once it's done, but not happy about having to bring it elsewhere.

Current Mods / Car Accessories:
Magnaflow Catback

3 Stars
Terrible fit at the cats, Review Date: 8/19/2014

SLP Y-pipe for Firebird 2000-02 V8


By: Nancy
Ownership: 0 - 1 day

Review:
Had to elongate the flange holes. They were wayyyyyy too wide for the catalytic converters bolts. What a pain in the a$$. And as noted in other reviews, the output y tip is a bit shorter than the stock y pipe.

Current Mods / Car Accessories:
Nothing as I'm still working on this y-pipe fitment.

5 Stars
SLP loudmouth 2013 challenger, Review Date: 5/9/2014

SLP Loudmouth Exhaust Challenger 2008-13 5.7L Cat-back System use w/stock exhaust manifolds


By: Beepx22
Ownership: 1 day - 1 week

Review:
Great exhaust. Loud at wide open. Nice rumble at idle. Install took less than hour with access to a lift. Don''t think you''ll find a better exhaust for the money.

Current Mods / Car Accessories:
Slp loudmouth

5 Stars
SLP Wheel, Review Date: 5/9/2014

SLP 2010-14 Camaro Wheels Painted Gray Finish / Gray Windows 20" x 8” front 20” x 9” rear (set of 4)


By: Rich
Ownership: 1 week - 1 month

Review:
FASSSSTTTT Ship and overall appearance and fit--Perfect---Sharp wheel and getting rave reviews.

Current Mods / Car Accessories:
Custom interior-exhaust--pinstriping--paint--intake

5 Stars
SLP lid a must, Review Date: 3/2/2014

SLP Air Box Lid 2000-02 V8 Camaro LS1


By: Noshamez28
Ownership: 1 week - 1 month

Review:
Lid makes a huge difference with horsepower gains and also looks way better under the hood. Very easy to install and we'll worth the price

Current Mods / Car Accessories:
SSRA ram air, k&n, slp airlid, pacesetter y-pipe, slp loudmouth exhaust, 3.73 gear, hyper tech MAX energy programmer

4 Stars
Add a clip, Review Date: 2/26/2014

SLP Loudmouth Exhaust Camaro V6 2010-14 Axle-Back System w/4 inch Tips


By: Simon
Ownership: 0 - 1 day

Review:
I really like the exhaust; but I was incredibly hesitant to buy for weeks because I just didnt get a serving-justice sound (confidence) in the exhaust. I tried youtube, but there are no videos for this exhaust on a 2013 LT model. A possible clip of its sound would do awesome...! Thanks

Current Mods / Car Accessories:
Exchanged stock exhaust with SLP Loudmouth Exhaust for v6 2010-2014 Axle-back system.

5 Stars
Xcellent pipes, Review Date: 12/30/2013

SLP PowerFlo-X Crossover Pipe, Full Assembly, 2005-10 Mustang GT w/Cats V8


By: AutomaticWin
Ownership: 1 day - 1 week

Review:
After having to drill out the passenger side flange, because it was way to small for the bolts and buying nuts for those bolts because they weren't included, the install went very well and the out come is a very very happy customer, love the sound especially combined with SLP Loudmouths and BBK shorty header. I'd recommend theses X-pipes to anyone want a very loud and VERY aggressive sound...now just to install the BBK Throttle Body that i bought along with theses X-pipes good job SLP and LMPerformance for getting them to me before Christmas...

Current Mods / Car Accessories:
BBK shorty headers...SLP LOUDMOUTH exhaust and BBK Twin Throttle Body

5 Stars
AMAZINGLY LOUD!!!!, Review Date: 9/18/2013

SLP Loudmouth Exhaust Mustang GT GT500 2011-14 Axle-Back w/4 inch Tips V8


By: Nick M
Ownership: 0 - 1 day

Review:
sooo loud. really wakes up my peaceful town

Current Mods / Car Accessories:
none. just this axleback

5 Stars
1 of the Best bolt on's for the LS1, Review Date: 8/22/2013

SLP Loudmouth Exhaust Camaro V8 1998-02 Cat-back System w/Dual Dual Tips


By: 2000CamaroSS#2930
Ownership: 1 day - 1 week

Review:
Got this system to replace the flowmaster that was currently on the car. I don't know what series it was but it was to quiet. Had this installed and noticed a difference in power and throttle response compared to the previous system. The exhaust is more throatier. I know some people talk about the cabin drone but as long as you have the stock manifolds and cats the drone is not bad at all so far I only noticed it at 1800 rpm's in 5th gear but highway speeds in 6th gear is deep and little drone. Couple this with the SLP air lid and you will notice differences throughout the RPM range

Current Mods / Car Accessories:
SLP Air Lid, SLP Loudmouth

5 Stars
04 Comp G, Review Date: 8/7/2013

SLP Exhaust System, 1997-07 Grand Prix PowerFlo w/3.5 Slash Tips


By: T
Ownership: more than 1 year

Review:
Had this installed 5 years ago and still loving it. Nice mellow rumble, not a v8 but not too bad for a 6. Mufflers and tips look as shiny as new.

Current Mods / Car Accessories:
3.5 SLP pulley,SLP catback,ZZP pcm, K&N intake and wax

5 Stars
99 T/A ls1 loudmouth II, Review Date: 4/26/2013

SLP Loudmouth II Bullet-Type Muffler, Firebird (each) - 1993-02 V8


By: Ls1ears
Ownership: more than 1 year

Review:
Wasnt sure weather ta get tha lm 1 or 2 so ta stay sound ordinence safe and I have no complaints. Its loud super aggressive and deep. I have tha cats removed and 1 loudmouth II that "y's" into 3 1/2 tips and its deep. Very satisfied but im changing to the loudmouth 1 because I want stupid loud lol. But if you want a good deep agressive muscle car sound thats just loud enough tha loudmouth 2 is tha way to go!!!

Current Mods / Car Accessories:
Slp cold air kit computer tune built transmission cat delete

5 Stars
SLP Shift Knob on 2010 Camaro SS, Review Date: 4/9/2013

SLP Shift Knob 2010-14 Camaro 6-Speed Shifter w/Trim Ring Leather Wrapped SLP Logo


By: cking
Ownership: 1 month - 1 year

Review:
This is a great upgrade to the irregular shaped knob on the 2010+ Camaro. The leather is soft and installation is very easy. This knob definitely gives you a more positive feel, while also giving you a more ergonomic grip than the original. One of the best upgrades I've done on my car!

Current Mods / Car Accessories:
Halltech Cold Air Intake Borla Cat Back Exhaust Superchips Programmer

5 Stars
Slp loud mouth II , Review Date: 3/29/2013

SLP Loudmouth II Bullet-Type Muffler, Camaro (each) - 1993-02 V8


By: outlaw
Ownership: 1 day - 1 week

Review:
very pretty muffler very good build quality on par with the like of borla and other exceptional brands better yet sounds awesome great all round muffler be ware very loud which is what i wanted, but if you dont find something quieter

Current Mods / Car Accessories:
90mm intake and tb, lt headers, off road y, slp loud mouth II

5 Stars
SLP LOUDMOUTH 1'S 2.5INCH, Review Date: 3/19/2013

SLP Resonators, GTO,Mustang GT/Cobra Loudmouth Shotgun (pair)


By: AJ
Ownership: 1 week - 1 month

Review:
Just purchased a set of Loudmouth 1 resonator's about 2 weeks ago. Fast shipping, And they sound absolutely amazing!!! Real Mean Agressive Tones... Custom istalled them on a Cadillac Eldorado with the northstar single exhaust with Y pipe in the rear and 10 out of 10 on the sound. The best sound i have ever heard.. You must buy! yull be shocked, music to your ear's if your looking for a real mean sound and you want Loud buy them, not as loud as you would think inside the car just pure mean agressive sound...yull havta experience it to believe it! just be easy on that pedal when you pass the law lol they are LOUD. Very Pleased!!! defintly worth it.

Current Mods / Car Accessories:
Catless..pcm custom tuned.

4 Stars
SLP Powerflo muffler 208 Corvette convertible, Review Date: 1/25/2013

SLP Exhaust System, 2005-08 C6 Corvette Powerflo w/ Round Tips


By: Hounddog
Ownership: more than 1 year

Review:
Reason I rated this Powerflo poor is the DRONE! Around 1500 RPM you can't talk on your cell phone or hardly hear the7 radio. It is advertised to have low resonates. If this is low I would hate to hear8 loud and a lot. The quality of the system is GOOD. Tone is OK. The DRONE at certain RPM is terrible. Top down its OK. Top up you need ear plugs under certain conditions.

Current Mods / Car Accessories:
Stock

5 Stars
2012 v6 camaro rs, Review Date: 11/25/2012

SLP Loudmouth Exhaust Camaro V6 2010-14 Axle-Back System w/4 inch Tips


By: Mike02
Ownership: 1 day - 1 week

Review:
Definitely a great addition to the v6 camaro improves the sound way better than the stock exhaust definitely recommend it and super easy to install lift was not necessary

Current Mods / Car Accessories:
slp loudmouth axle back #31201

5 Stars
LOVE IT !!!, Review Date: 10/21/2012

SLP Loudmouth II Exhaust Corvette C6 2005-08 Axle-Back w/ Round Tips


By: vette07
Ownership: 1 day - 1 week

Review:
I listened to tons of sound clips. Then decided to do it right or leave it if you really want a change to stock exhaust.It is significantly louder and I guess it turns some heads. Sounds and feels great- also the tips look awesome. If you want that the look no further!

Current Mods / Car Accessories:
2007 Corvette Convertible Z51 3LT Stock

4 Stars
2008 G8 GT, Review Date: 8/19/2012

SLP Loudmouth Exhaust G8 2008-09 GT GXP Axle-Back w/ 304 SS GT Tips


By: LG
Ownership: 1 week - 1 month

Review:
Sounds great! very happy

Current Mods / Car Accessories:
Exhaust

5 Stars
Cold Air, Review Date: 7/17/2012

SLP Cold Air Induction Package, 1998-02 Camaro V8 / V6


By: Dan
Ownership: 1 month - 1 year

Review:
Love the cold air intake. I was suprised about having to cut the old shield, but was easy to trim up. Can tell the difference at idle, and opening up.

Current Mods / Car Accessories:
Hypertuned, adjustable shocks, high flow cat

4 Stars
SLP Airlid (2000 Camaro SS), Review Date: 5/14/2012

SLP Air Box Lid 2000-02 V8 Camaro LS1


By: Anonymous
Ownership: 1 week - 1 month

Review:
Other then a pain trying to get the MAF sensor to slide into the neck (instruction say to heat up the airlid neck with a blow dryer), the lid really does clean up the engine bay. Car is a little more noisy when leaning into since the baffles are removed, but otherwise performance is way better. Definitely worth it.

Current Mods / Car Accessories:
SLP Airlid, SLP Bellow, K&N Filter, UMI 3-Point Sub-Frame Connectors, Spohn Tunnel Brace, Spohn Strut Tower Bar.

3 Stars
bad day, Review Date: 4/13/2012

SLP Long-Tube Mustang Headers 96-04 GT 2V V8


By: Bry
Ownership: 1 week - 1 month

Review:
I had this product profesionally installed, and the shop estemated 6 to 8 hours three days later they were just finishing up. I am not sure if it was just the set that I got or what happened. All other SLP parts I have purchased have been awesome!!! However these rubbed on everything under the car. Also made it impossible to run the EGR no big deal, but still thats beside the fact. The kicker was when the performance shop told me all that time and there was still one bolt that they could never even get on! I will admit they looked awesome on the table and sound great but as far as fitment goes they do not receive high marks on this product. P.S. don''t try to install these at home you will hate your life

Current Mods / Car Accessories:
SLP loudmouth and catted x. MSD coils, steeda cold air, throttle body and plenum, Steeda under drive pulleys, and drive train/ suspension mods

5 Stars
skip shift elimunator, Review Date: 3/29/2012

SLP Skip-Shift Eliminator Camaro 1993-02 V8


By: DANNY M
Ownership: 1 month - 1 year

Review:
The unit was very easy to install and works like a dream. It's very nice to get rid of the skip shift option. i would recommend this item.

Current Mods / Car Accessories:
2000 CAMARO Z28

5 Stars
slp loudmouth 1, Review Date: 3/24/2012

SLP Loudmouth Exhaust Camaro 1998-02 Cat-back System w/4 Double wall Tips V8


By: Kevinator
Ownership: 1 day - 1 week

Review:
Even though it's not for a 1995 Z28 and they discontinued the adapter kit with alittle cutting of the factory catback it fit great and sounds really mean awesome exhaust

Current Mods / Car Accessories:
too many to list

5 Stars
Amazing, Review Date: 3/6/2012

SLP Loudmouth II Exhaust Camaro V6 2010-14 Axle-Back System w/4 inch Tips


By: Dino
Ownership: 1 day - 1 week

Review:
This exhaust is amazing. Videos do it no justice until you hear it in person. LM Performance delivered as expected, 2 days and it was at my house. Thanks!

Current Mods / Car Accessories:
This is my first mod

5 Stars
Amazing, Review Date: 3/6/2012

SLP Loudmouth II Exhaust Camaro V6 2010-14 Axle-Back System w/4 inch Tips


By: Dino
Ownership: 1 day - 1 week

Review:
This exhaust is amazing. Videos do it no justice until you hear it in person. LM Performance delivered as expected, 2 days and it was at my house. Thanks!

Current Mods / Car Accessories:
This is my first mod

5 Stars
Awesome sound, Review Date: 2/25/2012

SLP Loudmouth Exhaust Camaro V6 2010-14 Axle-Back System w/4 inch Tips


By: V6 camaro
Ownership: 1 day - 1 week

Review:
This exhaust really sounds awesome, a great addition to my 2011 camaro v6. Easy install, great price, and fast shipment from lm performance. Thank you.

Current Mods / Car Accessories:
Slp loudmouth axle back, airaid cai, airaid throtle body spacer

5 Stars
Slp lid, Review Date: 1/22/2012

SLP Air Box Lid, 1998-99 V8 Camaro


By: Insert name
Ownership: 1 day - 1 week

Review:
I noticed a difference as soon as I hit the gas the first time, not a big difference but definitely 5-7whp and noticeably better throttle response. Install is straight forward, you definitely need to use a hair drier to get the mad back on, other than that easy hp.

Current Mods / Car Accessories:
02 camaro z28 6 speed: Slp lid, pacesetter long tubes, pacesetter cat less y pipe, Borla adjustable catback, diablosport 2 predator custom tuned, ported and polished stock throttle body

5 Stars
slp loudmouth g8 gt, Review Date: 1/12/2012

SLP Loudmouth Exhaust G8 2008-09 GT GXP Axle-Back w/ 304 SS GT Tips


By: big poppa pump
Ownership: 1 week - 1 month

Review:
this loudmouth is very loud , still debating on removing factory resonator aka mid muffler for x pipe ..think i will do it though this summer def .. everyone def looks when im rolling down the street now just right not to crazy of a sound .i will be posting a video on you tube soon ..i did not like any of the videos showing this sytem on a g8 gt so when i make it it will be from every angle . inside ,outside,startup,takeoff,burnout,ext

Current Mods / Car Accessories:
massive spark plugg wires , ngk tr pluggs, afe power cold air intake, underdrive, synthetic, v-power gas only , next is custom x pipe , getting rid of resonator factory.

5 Stars
2001 SLP camaro, Review Date: 1/11/2012

SLP Y-pipe for Camaro 2000-02 V8


By: Butch
Ownership: 1 day - 1 week

Review:
we had to replace the y pipe due to the customer running thier car off road the OEM y pipe is nonexistant, i was almost ready to have one made to finish this job then i found this one on LM performance on a web search, i was realy not sure it would work but i was desparate,i also ordered a pair of magnaflow 49 state direct fit catalytic converts, i have to tell you these three parts saved me some hassle they are great the difference between the oem y pipe and the new one is the oem is flat and looks restrictive, the new one is round and "full open" these parts fit as good as OEM only difference is the center "exhaust" crossmember had to be taken off for clearance and it is realy not anything but a scrape guard.

Current Mods / Car Accessories:
2001 stock SLP camaro

5 Stars
Amazing Product, Review Date: 10/27/2011

SLP Cold Air Induction Package, 1998-02 Camaro V8 / V6


By: Anonymous
Ownership: 1 day - 1 week

Review:
I have a v6 camaro and it was an easy part to install only took about an hour.

Current Mods / Car Accessories:
slp cai, slp air lid,flowmaster exhaust

5 Stars
2012 GT500 SLP Loudmouth Axle back, Review Date: 9/7/2011

SLP Loudmouth Exhaust Mustang GT GT500 2011-14 Axle-Back w/4 inch Tips V8


By: 2012SVTSnake
Ownership: 1 day - 1 week

Review:
Definitely worth the price! Loud aggressive tone! This is my third vehicle with the SLP LM1's and I'm sure it won't be my last. SLP = great quality, great price, and awesome sound. LMPerformance = fast shipping, and great pricing... Here's a quick clip of the exhaust.. http://www.youtube.com/watch?v=mmA9e7u7Zwg&feature=share

Current Mods / Car Accessories:
2012 GT500, all stock with the exception of the SLP Loudmouth axle back

5 Stars
Awesome, Review Date: 8/30/2011

SLP Y-pipe for Camaro 2000-02 V8


By: JB
Ownership: 1 week - 1 month

Review:
PERFECT upgrade from the stock Camaro y pipe. I can feel more power throughout my car. Thanks!

Current Mods / Car Accessories:
2002 35th Anni Black Camaro z28, high flow cats, 3" SLP off road y pipe, heartthrob exhaust cutout, ls6 intake, hp tune

5 Stars
GTP SLP powerflo ehaust system , Review Date: 7/28/2011

SLP Exhaust System, 1997-08 Grand Prix PowerFlo w/Dual/Dual Tips


By: JEFF Z
Ownership: 1 day - 1 week

Review:
I couldn''t be happier!!! This exhaust was exactly what I was looking for. SOUNDS GREAT!!! And easy to install. As far as shipping goes, it only too THREE DAYS. ordered it on Friday and had it installed TUESDAY A+++++++ SHIPPING!!!

Current Mods / Car Accessories:
SLP Exhaust system

5 Stars
slp cold air , Review Date: 7/10/2011

SLP Cold Air Induction Package, 1994-97 Camaro V8


By: 97z28slp
Ownership: more than 1 year

Review:
i had the k/n cold air kit for ram air on my 97 z28 then changed to slp cold air kit i made 12 more rwhp with it and it makes a cool sound like a superchager

Current Mods / Car Accessories:
im not one of those dont ask dont tell people but have to much to list i make 635rwhp

4 Stars
2000 Pontiac Trans Am ws6, Review Date: 6/30/2011

SLP Y-pipe for Firebird 2000-02 V8


By: Anonymous
Ownership: 1 week - 1 month

Review:
The pipe was a little short in the tail end but it still worked out. I might have to extended the tail of the Y pipe though.

Current Mods / Car Accessories:
SLP Lid, SLP MAF, SLP Smooth Bellow, Magna Flow cat back exhaust back exhaust, Spohn adjustable strut tower brace, Spohn Tunnel brace, SLP performance Y pipe. You will find out the other mods if any want to race.

4 Stars
Camaro Black-Out panel, Review Date: 6/17/2011

SLP 2010-13 Camaro Graphics Kit Flat Black Rear Black-Out Panel


By: Striker
Ownership: 0 - 1 day

Review:
My Camaro is Silver with black vinyl stripes. I purchased the flat black-out panel and I'm very glad that I did. I debated between gloss and flat but the flat perfectly matches the stripes that came on my Camaro and I love it. I installed the black-out decal today and struggled with it when I attempted to follow the provided instructions. The vinyl is hard to line up and center on the paper. I scrapped the SLP instructions and did a wet install which proved to be a lot easier! I used a spray bottle with water and 3 drops of dish soap and soaked down the area, my fingers and removed the vinyl from the sheets. From there I was able to slide the vinyl into place for perfect positioning. The SS decal came with a gloss black backplate which I did not use. I put the SS directly on the flat black-out degal. I am very pleased with the results.

Current Mods / Car Accessories:
Mods I've made to my 2SS include the black out panel, SS logo's on the front and the back of the car and the gill fade out decals. I have the high wing spoiler on order.

4 Stars
Gill decals, Review Date: 6/16/2011

SLP 2010-14 Camaro Graphics Kit Flat Black/Fade Rear Quarter Gill


By: Striker
Ownership: 1 week - 1 month

Review:
I have mixed feeling about the gill decals. I struggled a little to get them placed just right and up close it is obvious that they are decals but from a distance they look great. I'm paranoid to ever run the car through a car wash or use a pressure washer around the decals. The installation was not complicated but I did have to remove and reapply a couple of the strips several times to get the placement just right with no air bubbles. It was worth it and it looks good.

Current Mods / Car Accessories:
Added the side gill decals to my 2SS

5 Stars
loud mouth, Review Date: 6/6/2011

SLP Loudmouth Exhaust Challenger SRT-8 2008-13 Cat-back System use w/stock exhaust manifolds


By: challenger srt8
Ownership: 0 - 1 day

Review:
Muffler sounds great exactly what I expected and service was excelent no problems at all

Current Mods / Car Accessories:
Slp loudmouth

5 Stars
SLP LOUD MOUTH II ON 2002 CAMARO Z28 SINGLE EXHAUST, Review Date: 5/30/2011

SLP Loudmouth II Bullet-Type Muffler, Camaro (each) - 1993-02 V8


By: TONY FROM EVANS, GA
Ownership: 1 day - 1 week

Review:
I had a Flowmaster 80 series on the stock tail pipes with the rectangular tips. It really sounded good, but I wanted something louder. My son suggested the LMII mounted as a single muffler and dumping it before the rear axle. Well, I was surprised at the sound!! It really sounds great on the Camaro since it is low to the ground and the sound is amplified bouncing off the pavement. I must say I do miss the look of the dual tips I had, but I'll get over it. There is a drone sound inside, but I like the aggressive sound and generally ride with the windows down and the radio turned down. A great product by SLP!!

Current Mods / Car Accessories:
My car is a B4C edition. It came with quite a few extras including the LS6 intake and block. I added the SLP Air Lid a few months ago.

5 Stars
loudmouth, Review Date: 5/15/2011

SLP Loudmouth Shotgun Resonator, Firebird (each) - 1993-02 V8


By: 95 bird
Ownership: 1 day - 1 week

Review:
Sounds awesome nice and loud good throaty tone

Current Mods / Car Accessories:
Loudmouth resignator

4 Stars
Nice, Review Date: 5/8/2011

SLP Loudmouth Exhaust GTO 2004 Cat-back System w/ Tips


By: 04GTOLUV
Ownership: 1 month - 1 year

Review:
This system sounds great. but if you have crabby neighbors who dont know a thing about cars or the appreciation of good old american muscle,Id get something a little less aggressive. This system WILL wake them up and get the cops called. If you driver your car everyday you might want something a little more quiet. The system sounds great but can get on your nerves when your in the drive thru. If your looking for that NASCAR sound this is the package to get.

Current Mods / Car Accessories:
full SLP system from heads to tips.

5 Stars
great!, Review Date: 4/26/2011

SLP Loudmouth 2 Exhaust Camaro V8 1998-02 Cat-back System w/ Dual-Dual Tips


By: Jimbo Whitey
Ownership: 1 week - 1 month

Review:
fast service. fast delivery. slightly easy installation. very satisfied. will definitely be doing future business with y'all again.

Current Mods / Car Accessories:
walmart rims, kimbo slice short shifter, o'reiley's direct port nitrous system, autozone head & cam combo, costco headers, 2 hardcoremaxx facepounder 12" competition subs and amp... :)

5 Stars
These sound AWESOME!, Review Date: 4/11/2011

SLP Loudmouth Exhaust Corvette C6 2009-13 Axle-Back w/ Round Tips


By: corvettejonesy
Ownership: 1 month - 1 year

Review:
Simply put, these sound very aggressive, throaty, and loud. There is some resonance at particular RPM's, but since I have a six speed, it can easily be accomodated for. I have had these for about six weeks, and someone yells out their car window at me about once a week telling me how good this car sounds. The sound clip on here is good, but in real life they sound deeper and throatier than on the video. Nice 'burble' type sound when deaccelerating. All around great sounding pipes!!

Current Mods / Car Accessories:
SLP Loudmouth, Vararam Snake Charmer

5 Stars
SWEET!!!!!!, Review Date: 4/10/2011

SLP Loudmouth Exhaust Mustang GT GT500 2011-14 Axle-Back w/4 inch Tips V8


By: 11'GT/CS
Ownership: 1 day - 1 week

Review:
Let me tell you all something. I've owned 3 Mustangs. My 2011 GT is the quietest stock than the others (04'GT, and 10' GT) Soo 3 days ago I recieved my SLP's.. which only took 2 business days to get here!! Super fast shipping!! I work at a dealership which I had them install on a lift which took less than 30 min. When they started my car up, EVERYONE circled around, and the only thing anyone said was OMG that sounds GOOD! I have gotten over 20 compliments from around my dealership in the past 2 days. Be aware they are LOUD!!! People are BLOWN away when you tell them all you have is axle-backs, they think you are bluffing. THESE ARE THE REAL DEAL FOLKS !!!! 5 stars to SLP and 5 stars for LM performance for price and quick shipping!!!

Current Mods / Car Accessories:
3.73's, and SLP loudmouths

5 Stars
SLP LOUDMOUTH, Review Date: 3/28/2011

SLP Loudmouth Exhaust Mustang GT GT500 2011-14 Axle-Back w/4 inch Tips V8


By: 2tall
Ownership: 1 day - 1 week

Review:
The best upgrade anyone can do to thier vehicle! sounds amazing OMG!! sorry neighbors

Current Mods / Car Accessories:
Stock fully loaded 5.0

5 Stars
SLP Long Tubes, Review Date: 3/17/2011

SLP GTO Headers Coated 1-3/4 Long-Tube w/Cats /Downpipes, 2005-06


By: 468Firebird
Ownership: 1 week - 1 month

Review:
Excellent quality product. Installation would be much easier with a lift, when reinstalling the steering rack after the headers are in place. You must line up the steering shaft coupling with the rack key perfectly as you guide the rack up in its position. Don''t rush or attempt to force the rectangular key into the coupling, it just takes some trial and error with the help of an extra hand.

Current Mods / Car Accessories:
SLP long tubes, cats, mids, downpipes, SLP Bobcat 455 Programmer.

5 Stars
Aaaaaauuuuuusum, Review Date: 2/20/2011

SLP Loudmouth Exhaust Mustang GT GT500 2011-14 Axle-Back w/4 inch Tips V8


By: Jack
Ownership: 1 day - 1 week

Review:
I installed my SLP 2011 Mustang GT Loudmouth Axle-Back Exhaust pipes in an apartment parking lot with a carjack so it took me a little longer than an hour, but not much. I installed one side and checked the difference. Couldn't even hear the stock side. After installation put it on the road. Had to idle out of the complex as to not disturb them. Got out on the freeway and hit 6th gear and the resonance in the car was so great had to go back to 5th and thought that I had overdone it. After driving in 5th for about 10 miles on my way back to the apartment I tried 6th and the computer had evidently made corrections for the different pressures and temperature etc. because now it was a sound like no other. The true heartbeat of a thoroughbred 5.0 that is running loose on the open range. I am showing a mpg increase of close to 5 mpg if I can keep my foot out of it, which is hard to do. This is with supper Unleaded 93 octane. You have to own it to appreciate it. As I said in the Title it is AAAAAUUUUSSSUUUUMMMMM! They will unleash the hidden power within

Current Mods / Car Accessories:
The SLP 2011 Mustang GT Loudmouth Axle-Back Exhaust is my first Modification to my unbelievable 5.0. This needs no explanation,if you own one.

3 Stars
Flop, Review Date: 2/15/2011

SLP Loudmouth Exhaust Camaro V6 2010-14 Axle-Back System w/4 inch Tips


By: Camaro guy
Ownership: 1 day - 1 week

Review:
I recently installed this system and it definitely does change the sound quite a bit from quiet to VERY loud. I have no complaints about this product as long as you never drive over about 2,500 RPM in which case, it sounds great. The problem is that when you get up into the higher RPM's, it goes from a deep grumble to a Tokyo Drift style tonka toy. I feel embarassed to even take off fast because of that and about 4 days into owning it, I have already ordered the Flowmaster axel back system to install in its place which based on youtube videos, sounds great all the way up to the red line. It still has the V6 sound, but at least it still sounds American...

Current Mods / Car Accessories:
Just a regular K&N filter.

5 Stars
AWESOME!, Review Date: 2/11/2011

SLP Loudmouth II Exhaust Camaro V6 2010-14 Axle-Back System w/4 inch Tips


By: Gizzmo
Ownership: 1 day - 1 week

Review:
After ALOT of research I decided to go with the Loudmouth 2 axle back for my 2010 V6 automatic Camaro. It sounds better than the video! LM Performance delivered in 2 days and was very helpful. Quick install. I had a Flowmaster shop put it in and they were inpressed. The SLP Loudmouth 2 is better in quality and sound. I am sooooo happy! :-)

Current Mods / Car Accessories:
NONE

5 Stars
Can you hear me now?, Review Date: 1/5/2011

SLP Loudmouth Exhaust Mustang GT GT500 2011-14 Axle-Back w/4 inch Tips V8


By: Jack
Ownership: 1 month - 1 year

Review:
Cant go wrong... might wake up the neighborhood when you start it, thats all. haha. I LOVE THE PURR YOU GET WITH THEM!

Current Mods / Car Accessories:
SLP Mustang GT Loudmouth Axle-Back Exhaust Loud Mouth w/4 inch Tips

5 Stars
2007 CORVETTE, Review Date: 12/13/2010

SLP Loudmouth Exhaust Corvette C6 2005-08 Axle-Back w/ Round Tips


By: IBEQUICK
Ownership: 1 week - 1 month

Review:
I now have the most aggressive sounding corvette in town. It will flat turn some heads.

Current Mods / Car Accessories:
STOCK 6.0

5 Stars
slp loud mouth II, Review Date: 11/13/2010

SLP Loudmouth II Exhaust GTO 2004 Cat-back System


By: GTO
Ownership: 0 - 1 day

Review:
installed system in 30 minutes/perfect fit/sounds great/looks great,worth every penny.thanks to LMperformance for processing order quickly.slp makes a great exhaust system for the gto.

Current Mods / Car Accessories:
functional carbon fiber ram air hood/k&n cool air intake

5 Stars
nice, Review Date: 10/22/2010

SLP Loudmouth Shotgun Resonator, Camaro (each) - 1993-02 V8


By: csrcamaroz28
Ownership: 1 day - 1 week

Review:
This is a nice loud muffler it sound like you mean buisness nice rummble with alot of noice

Current Mods / Car Accessories:
this is a nice part i got aftermarket wires plugs intake headers exhaust and tuned. i am pushing 385hp with this set up the intake is slp the headers are slp the exhaust is a y pipe slp and the

3 Stars
cold Intake package, Review Date: 10/14/2010

SLP Cold Air Package, 00-02 LS-1 Camaro (FlowPac) V8


By: jksz28
Ownership: 1 month - 1 year

Review:
It was a little aggravating to install. I have ran other intakes and cant say that I noticed a difference in between slp's and other brands. It does sound nice. Is worth the money not by much tho.

Current Mods / Car Accessories:
Slp cold air intake, Pacesetter LT headers and y-pipe, Magnaflow cat back exhaust, Spohn Torque arm

5 Stars
Wicked LS1 Growl, Review Date: 10/13/2010

SLP Loudmouth 2 Exhaust Camaro V8 1998-02 Cat-back System w/3.5 Slash Tips


By: MIKEYZ
Ownership: 0 - 1 day

Review:
I just put these on my 99 Z28 an oh my god i got in my car and cranked it over, it made that LS1 Growl! Item was shipped in about 4 days, I was very impressed. I would reccommend this site an the SLP Loudmouth II to anyone with a F-Body!!!

Current Mods / Car Accessories:
1999 Z28 Camaro 5.7 Liter LS1, mostly Stock with 3:96 gears

5 Stars
from a purr to a GROWL!, Review Date: 10/4/2010

SLP Loudmouth Exhaust Camaro V6 2010-14 Axle-Back System w/4 inch Tips


By: junky van
Ownership: 1 day - 1 week

Review:
I have to say that I am very pleased with the SLP Loudmouth exhaust! The installation was a snap... took about an hour. The sound is incredible!! This was my first mod on my Camaro and I have to say it turned this V6 from a tame kitty purr to a fierce lion roar! The product is well made and very solid plus the tips look awesome. I would recommend this to anyone who wants to enhance the engines sound and turn a few heads along the way.

Current Mods / Car Accessories:
SLP loudmouth axel back exhaust

5 Stars
Awesome, Review Date: 9/27/2010

SLP Header Package, 1-3/4 Long Tube 2000 Camaro w/Y-Pipe/Cats/ Install Kit V8


By: SScamaro2000
Ownership: 1 day - 1 week

Review:
I had SLP's long tube headers installed on my 2000 SS camaro along with the Loudmouth 1 exhaust. The performance and sound from these two components is awesome. If you want the meanest and loudest then I recommend these. Just a note, if you're putting these on the Camaro my "service engine soon" light started to come on after install.

Current Mods / Car Accessories:
SLP long tube headers, SLP LM-1 exhaust

5 Stars
Awesome, Review Date: 9/27/2010

SLP Loudmouth Exhaust Camaro V8 1998-02 Cat-back System w/3.5 Slash Tips


By: csgantt
Ownership: 1 day - 1 week

Review:
The sound is absolutely the meanest I've heard in a long time. Exceeded my expectations just as indicated by the previous review. The poor little Mustangs pulling up next to me look frightened :)

Current Mods / Car Accessories:
SLP long-tube headers and SLP LM-1 exhaust on a 2000 SS camaro.

4 Stars
SLP powerflo-better than stock without being painful, Review Date: 9/27/2010

SLP Camaro 2010-14 V8 Axle-Back PowerFlo Exhaust with 4 inch Tips - 31210A


By: davy
Ownership: 1 week - 1 month

Review:
exhaust sounds better than stock. stock is boring and silent, powerflow adds volume without giving you a head ache. not likely to get you attention from cops, but loud enough to get some looks. interior rumble at low rpms is kind of loud and can get old and it sounds ok when opened up. regular cruising speed sounds nice without being "loud". if you really want attention and like to listen to your engine scream, but still want to be able to use the car as a daily driver, go for loudmouth 2. if you want the loudest without just being too much, go for loudmouth 1. if you want your ears to bleed, get rid of the cats and keep the lm1

Current Mods / Car Accessories:
powerflow axel back exhaust

5 Stars
Awesome Sound, Review Date: 9/1/2010

SLP Loudmouth II Exhaust Camaro V6 2010-14 Axle-Back System w/4 inch Tips


By: wbenn5
Ownership: 0 - 1 day

Review:
The sound that comes out of the Loudmouth II is awesome!! Well above the expected sound. Gives the V6 a V7 like sound that reverberates through around town cruising. Above 3000 rpm transforms the low growl to a roar and an ear to ear grin on the driver.

Current Mods / Car Accessories:
This is currently the only modification

5 Stars
slp lm1's, Review Date: 8/25/2010

SLP Loudmouth Exhaust Mustang GT GT500 V8 2005-10 Axle-Back


By: Anonymous
Ownership: 1 day - 1 week

Review:
I love these exhaust. It is by far the best invest i could make. There perfect. There loud enough to turn heads but when you get up to 5th gear its a nice lil rumble but not to loud to get on your nerves either. i love em.

Current Mods / Car Accessories:
bone stock

4 Stars
good affordable exhaust, Review Date: 7/11/2010

SLP Loudmouth 2 Exhaust Camaro V8 1998-02 Cat-back System w/ Dual-Dual Tips


By: matt
Ownership: 1 day - 1 week

Review:
quick delivery on LM's part; got to me within 2 days. Took about 4 hours to put the catback on as I ran into issues removing the stock unit. The SLP catback is made well and fitted together good. The instructions it came with weren't the greatest, but it did its job. Overall fitment of the parts was good. I had a slight clearance issue with the pipe over the rearend, but nothing too bad. Sound is good, idle is a bit louder and deeper than stock. Under load, it is louder (cabin noise isn't much higher) and definately has more rumble and less drone than the stock exhaust. This is a great system for the price.

Current Mods / Car Accessories:
slp loudmouth 2 catback

5 Stars
2006 Magnum RT, Review Date: 7/1/2010

SLP Loudmouth II Exhaust Magnum 2005-08 Cat-back System


By: Crawdaddy
Ownership: 1 week - 1 month

Review:
Personally the install was easy, directions were simple. Fit and finish is good. I love the sound that it delivers, not so much for the wife. I warned her for over 2yrs this was going to happen. Now, she isn't so pleased. I even got a guy with a Viper RT/10 to snap his head and give the thumbs up! Noticed a gas mileage increase already, as long as you keep your foot out of the pedal! With the 4 cyl shut down, you can really hear the note change at cruising speeds, and I think it makes it easier to stay in that fuel saver mode. Thanks for the product, really enjoy it.

Current Mods / Car Accessories:
No Additional Mod's at this time.

5 Stars
SLP LM1, Review Date: 5/24/2010

SLP Loudmouth Exhaust Mustang GT MACH 1 V8 1999-04 Cat-back System w/ 3.5" double-wall tips


By: GTRACER
Ownership: more than 1 year

Review:
I was running long tubes, O/R H pipe, and these SLP LM1 and the car was AGGRESSIVE and sounded AWESOME!!! There was nothing that sounded this mean on the street!! It was loud enough to hear me for miles!!!! Get this exhaust if you looking for mean and raw power sound!

Current Mods / Car Accessories:
2000 Mustang GT - Full bolt ons, full suspension, with nitrous.

5 Stars
slp loudmouths II , Review Date: 5/14/2010

SLP Loudmouth II Exhaust Magnum 2005-08 Cat-back System


By: hemirtmagnum
Ownership: 1 month - 1 year

Review:
This exhaust added a lot more horsepwer and sound mean amd loud!!!!!

Current Mods / Car Accessories:
Jba headers k n intake loudmouth exhaust and diablo superchip

4 Stars
2009 Racecraft 420 S Mustang, Review Date: 4/15/2010

SLP Loudmouth Exhaust Mustang GT GT500 V8 2005-10 Axle-Back


By: Gene
Ownership: 1 day - 1 week

Review:
Just installed the SLP Loudmouth axle back system, sounds great. Installation was a little tricky as the exsisting system had a stud that had to be ground down to allow the SLP pipe to go over the forward exhaust system. Also the SLP passenger side pipe hanger rod had to be re-bent a little in order for the pipe to run straight out the back. The driver side went on with no problem, all in all it took about 1.5 hours - only because I had to grind off the studs on the exsisting system and bend one rod.

Current Mods / Car Accessories:
Saleen Supercharger, Racecraft suspension system, 2.5 Ford Performance Exhaust System. 420 hp 400 ft lbs torque.

3 Stars
SLP Cold Air Induction, 1992-96 LT-1/1990-95 ZR-1 Corvette, Review Date: 4/7/2010

SLP Cold Air Induction, 1992-96 LT-1/1990-95 ZR-1 Corvette


By: VilhelmC4
Ownership: 1 week - 1 month

Review:
The SLP Cold Air Intake for the LT1/LT5 Corvette is an interesting addition. It is as the manufacturers claim, support up to an additional 20 HP based on application. As i applied this to at the time full stock engine, i havent noticed any performance gain. This initially disappointed me, given the price of it. However, i have noticed it benefit as i added more performance bolt-on additions to the car. I do believe that this intake can reach its peak potential HP gain when the entire engine itself has been upgraded such as: All bolt-ons, head porting, intake manifold porting and larger cam with the addition of a tune. Overall quality of the product is relatively good, with the exception is that it is heavy (for an intake) and one could see the weld-marks inside the intake tubes. Kudos to how it looks though, definitely looks different then alot of other intakes out there. I give it a 3 out of 5 because that is how it feels, average, the gains only show when the rest of the engine performance has improved.

Current Mods / Car Accessories:
All Bolt-Ons

4 Stars
SLP Exhaust, Review Date: 3/2/2010

SLP Exhaust System, 1997-08 Grand Prix PowerFlo w/Dual/Dual Tips


By: swisha
Ownership: 1 day - 1 week

Review:
good exhaust! excellent fit, installed in about 30 minutes in my driveway with jack stands. however it is not 304 stainless steel as advertised *(the mufflers may be) and the mufflers look amazing like a mirror. but the rest of the tubing is not 304 it is a lower grade 409.

Current Mods / Car Accessories:
99 gtp gen v 3.1, n* tb, slp headers, xp cam, 42.5# injectors

4 Stars
95 ford mustang Gt with flow duals, Review Date: 3/2/2010

SLP Exhaust Tip, Universal Polished 3.5' Double Wall (2.5' inlet) (each)


By: scarface
Ownership: 0 - 1 day

Review:
I have a 95 ford mustang Gt with flowmaster mufflers and these 3.5 in. tips rumbles nice want to put one on my dads truck to put out more rumble with his exhaust system

Current Mods / Car Accessories:
puts out the rumble along with the flowmasters

5 Stars
Wow..., Review Date: 2/9/2010

SLP Loudmouth Exhaust Camaro V8 1998-02 Cat-back System w/3.5 Slash Tips


By: Y2KWS6
Ownership: 1 month - 1 year

Review:
Welded it on instead of the clamps because i didnt want them to be visible. The sound is like no other and completely exceded my expectations. Highly recommend it to any one who wants to really let their f-body breath.

Current Mods / Car Accessories:
Exhaust

5 Stars
slp's, Review Date: 1/11/2010

SLP Loudmouth Exhaust Mustang GT GT500 V8 2005-10 Axle-Back


By: mustanggg
Ownership: 1 week - 1 month

Review:
these thing are a beast and they are very loud! i love 'em

Current Mods / Car Accessories:
dont ask dont tell

5 Stars
wicked, Review Date: 12/21/2009

SLP Resonators, GTO,Mustang GT/Cobra Loudmouth Shotgun (pair)


By: 03 sonic gt
Ownership: 1 week - 1 month

Review:
these made the car sound awsome hove no drone sound is wicked you must get these

Current Mods / Car Accessories:
cai,4.10 gear,throttle body,mac prochamber no cats,diablo sport tune,slp lm1

5 Stars
Awesome, Review Date: 9/29/2009

SLP Loudmouth Exhaust G8 2008-09 GT GXP Axle-Back w/ 304 SS GT Tips


By: Doubles
Ownership: 1 week - 1 month

Review:
Great exhaust and it really makes this car sound like a muscle car. Easy to install in about 20 minutes.

Current Mods / Car Accessories:
SLP loudmouth exhaust

5 Stars
SLP Loudmouth, Review Date: 9/15/2009

SLP Loudmouth Exhaust Camaro V8 2010-14 Axle-Back System w/4 inch Tips


By: Anonymous
Ownership: 1 day - 1 week

Review:
After listening to the sample SLP video of these pipes, we were impressed and bought them after listening to them all. Installation took 30 minutes just like the instructions said and these were very simple to install. Sound is amazing. We were not let down with this product and would recommend to anyone looking for a great sound with a quick and easy install that the do it yourself guy at home can do.

Current Mods / Car Accessories:
This is the first mod.

5 Stars
loudmouth 2 Charger 5.7, Review Date: 9/11/2009

SLP Loudmouth II Exhaust Charger V8 2005-10 Cat-back System


By: D.P
Ownership: more than 1 year

Review:
love it everyday superloud ..people stay out of the way with this exhaust.i installed myself. it and was at my door in days . highly recomend slp loudmouth

Current Mods / Car Accessories:
slp loudmouth 2,mopar cold air intake,

3 Stars
04 GTO Loud MouthII , Review Date: 7/17/2009

SLP Loudmouth II Exhaust GTO 2004 Cat-back System


By: Redfish
Ownership: 0 - 1 day

Review:
The X pipe needs to be marked bottom or top. This would eliminate the guess work in installing it and aligning the rest of the exhaust system. In the instructions it says to use the two old muffler support hangers faceing outward. It should say the two faceing inward.Other than these two small details the fit is good and the sound is nice.

Current Mods / Car Accessories:
K&N FIPK cold air system

5 Stars
Love them!, Review Date: 7/2/2009

SLP Loudmouth II Exhaust Camaro V8 2010-14 Axle-Back System w/4 inch Tips


By: vdevine
Ownership: 1 day - 1 week

Review:
I ordered the LM II's before my car arrived. I love the sound from the outside and that the resonance isn't bad within the cabin. But, you do know that it's a sports car and you can hear it coming and going now. Thanks, and check out the video of my SLP Loudmouth II Axle Back Exhaust:


Current Mods / Car Accessories:
No mods on my 2010 Camaro SS.

5 Stars
awesome, Review Date: 6/13/2009

SLP Loudmouth Exhaust Mustang GT GT500 V8 2005-10 Axle-Back


By: Anonymous
Ownership: 1 day - 1 week

Review:
easy install and made my stang sound tough as hell!!!! love it!!

Current Mods / Car Accessories:
dont ask dont tell

4 Stars
help, Review Date: 4/21/2009

SLP Flow Booster, 1985-97 TPI / LT-1 Throttle Body


By: Coutch
Ownership: 1 day - 1 week

Review:
tried to install it in a summit 58tb the instructions are clear and concise BUT it did not fit and the casting looks cheap not like a machined parts I will rewrite this once I get one that will fit and road test it for mph and dyno it Coutch B 93 Camero z28 cam ugrade roller rockers, coil ,kn filter and tornado , 8 mil wires, headers,computer reprogram ,more to come .......

Current Mods / Car Accessories:
see below

5 Stars
GREAT Product!, Review Date: 3/23/2009

SLP Dual Tip Tailpipe Assmbly, 2007-12 Avalanche/ Tahoe/ Suburban/ Yukon/Yukon XL for Factory Stock Exhaust


By: GMTech
Ownership: 1 day - 1 week

Review:
Top quality workmanship! great fit! One note: to all Z71 Tahoe owners..you will need to trim a small portion of the bottom of the fender flare for chrome tip clearance. And if you have the factory accessory mud flaps it too will need to be trimmed. Gives a nice idle exhaust note..not too loud!

Current Mods / Car Accessories:
None

5 Stars
Flow Pac, Review Date: 2/13/2009

SLP Cold Air Package, 00-02 LS-1 Camaro (FlowPac) V8


By: Stiltz81
Ownership: more than 1 year

Review:
With this intake, cat-back and MAF, I reached 320 hp at the rear wheels while getting between 18 and 21 mpg in the city and 27-29 mpg highway. It's worth the money!!

Current Mods / Car Accessories:
SLP Flow Pac, SLP MAF sensor, SLP Loud mouth 2 cat back

5 Stars
Loud Mouth II, Review Date: 12/4/2008

SLP Loudmouth II Exhaust GTO 2004 Cat-back System


By: Jim
Ownership: 1 month - 1 year

Review:
Installation Time ~1.5hours Noticeable low end improvement Great sound. On deceleration there is very audible "gurgle" in the exhaust. Gas mileage actually decreased slightly. Expect that tuning and dyno time will improve both HP and MPG further.

Current Mods / Car Accessories:
K&N Cold Air Intake

5 Stars
SLP LOUDMOUTHS, Review Date: 10/22/2008

SLP Loudmouth Exhaust Mustang GT GT500 V8 2005-10 Axle-Back


By: USMUSL
Ownership: 1 day - 1 week

Review:
MY STANG SOUNDS AWESOME NOW, LIKE A V8 MUSCLE CAR SHOULD. IT SEEMS LIKE ITS THREE TIMES LOUDER THAN STOCK! ITS EASILY THE LOUDEST STANG IN MY AREA NOW, AND AMONG THE LOUDEST MUSCLE CARS PERIOD, AND I HAVENT EVEN ADDED THE LONGTUBE HEADERS AND OFF ROAD H-PIPE YET!!!

Current Mods / Car Accessories:
DONT ASK, DONT TELL.

4 Stars
sounds great, Review Date: 7/28/2008

SLP Loudmouth 2 Exhaust Camaro V8 1998-02 Cat-back System w/3.5 Slash Tips


By: ryguy
Ownership: 1 week - 1 month

Review:
Just installed about 2 weeks ago and I think it sounds just as good as borla for like half the price i would highly recommend for the LT1 f-body

Current Mods / Car Accessories:
SLP lm2 cat back w/slash tips, new shocks, trick flow induction elbow, gutted cat, K&N FIPK, 160 powerstat and hypertec power programmer