Product Description

SKU: M31014
SLP M31014 - SLP Loudmouth Exhaust Mustang GT GT500 V8 Axle-Back; 2005-2010.
- Mandrel-bent 2.5 tubing offers unbeatable flow characteristics
- Significantly lighter than the OEM muffler assembly
- Installs in under 30 minutes
- Constructed entirely from stainless steel
- Hand-polished, 3.5 dual-wall tips provide a show-quality appearance
- Emissions legal in all 50 states
- Includes pre-welded hangers, detailed instructions, and all necessary installation hardware
- Covered by SLP’s Performance Guarantee and limited lifetime warranty
Your 2005 GT packs a 300-horse thoroughbred of an engine. Why bottle it up with restrictive, wimpy-sounding stock mufflers? Unleash the stallion within, with a Loud Mouth rear-section exhaust system from SLP Performance Parts. This affordable, easy-to-install kit eliminates the factory mufflers entirely, drastically reducing backpressure for enhanced power and a mind-blowing performance sound. Nothing else even comes close!
Features
- Mandrel-bent 2.5 tubing offers unbeatable flow characteristics
- Significantly lighter than the OEM muffler assembly
- Installs in under 30 minutes
- Constructed entirely from stainless steel
- Hand-polished, 3.5 dual-wall tips provide a show-quality appearance
- Emissions legal in all 50 states
- Includes pre-welded hangers, detailed instructions, and all necessary installation hardware
- Covered by SLP’s Performance Guarantee and limited lifetime warranty
Often Purchased Together
SLP Warranty Policy
SLP's warranty obligations for SLP® Parts and Accessories (individually and collectively “Part(s)”) is limited to defects in
materials and workmanship, as solely determined after SLP’s careful inspection, for that period identified in the chart
below that begins on the date of retail purchase by the original end-user purchaser ("Warranty Period"). 90 Days from the date of retail purchase by the original end-user purchaser. *Excludes SLP® Overstock Parts, NON-SLP® Parts and Accessories, SLP® Wheels; SLP Superchargers®
; SLP® Competition Parts, and SLP® Crate Engines, which the warranty coverage for the foregoing, if any, is separate from that explained here.
About SLP
History and information about SLP and their products.
Since 2001, LMPerformance has worked closely with SLP Performance to offer customers a wide range of performance enhancements to the American muscle car, the best known of which is its SLP Loudmouth muffler and SLP Camaro systems. With our SLP Performance parts line we have helped customers transform late-model rides into modern muscle cars like the Camaro SS and Pontiac Firehawk.
True to its name, Street Legal Performance (SLP) has a vision "to not just provide performance, but to do so with the best engineering practices and quality possible, far exceeding the industry standards." Impressively, SLP was 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, SLP Exhaust Tips, SLP Loudmouth Mufflers, Powerflo Headers, SLP Accessories, SLP Suspension, SLP Brake Kits and SLP Wheels. The range of applications offered by 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.Policies
California Residents: Prop 65 WARNING: This product MAY contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov
California Residents: TIRE WARNING: LMPerformance will not ship Tires to California.
Legal: Some or all of these parts may not comply with Federal, State, Province, and/or Local laws, ordinances, and regulations. Buyer takes all responsibility to ensure that any modifications or upgrades that have done conform to all applicable laws and regulations for road use, especially pertaining to safety and emissions. LMPerformance is not responsible for buyer not complying with Federal, State, Province, and/or Local laws, ordinances, and regulations. This policy shall be in force for all past, current, and future purchases from LMPerformance, Inc. LMPerformance will not ship ANY non-CARB compliant products to California where California requires products to be CARB certified such as Catalytic Converters and Induction Kits.
FREE SHIPPING: Please note FREE Shipping refers to shipping within the contiguous continental US only. All other locations extra. Some items that require Truck Freight Delivery will require a Truck Freight surcharge. This surcharge is still a discounted shipping amount that is lower then the actual truck freight shipping charge that is charged to LMP. LMP will try to still give the lowest price possible for truck freight items.
IMAGES: Images may be a representation and may not reflect the actual product. Examples would be SPEC stage 3 clutch kits which all use the same photo.
TYPOS: LMPerformance tries to present the best most accurate information on our website. Sometimes we get mistakes in product information sent from vendors such as typos. We can not be responsible for these typos, if you see something that does not look right please let us know before ordering so we can double check for you first. LMPerformance will not pay for typos in any way, monetarily or otherwise.
SLP M31014 Axle Back Review(s)
More SLP M31014 Axle Back Review(s)
slp lm1's
By: Anonymous
Ownership: 1 day - 1 week
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:
bone stock
2009 Racecraft 420 S MustangBy:
GeneOwnership:
1 day - 1 week
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:
Saleen Supercharger, Racecraft suspension system, 2.5 Ford Performance Exhaust System. 420 hp 400 ft lbs torque.
slp'sBy:
mustangggOwnership:
1 week - 1 month
these thing are a beast and they are very loud! i love 'em
Current Mods:
dont ask dont tell
awesomeBy:
AnonymousOwnership:
1 day - 1 week
easy install and made my stang sound tough as hell!!!! love it!!
Current Mods:
dont ask dont tell
SLP LOUDMOUTHSBy:
USMUSLOwnership:
1 day - 1 week
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:
DONT ASK, DONT TELL.
SLP Brand Review(s)
Reviews for SLP's Other products are show below.
SLP Cold Air Package, LS-1 Firebird (FlowPac) V8; 2000-2002
Cold Air induction: Performance & RisksBy:
Arqtec59Ownership:
more than 1 yearSlp's Cold Air Induction Package Kit worked great for about 12 years on my 2002 Camaro Z-28, I purchased this Camaro new in 2002 and treated the car with excellent care, 13 years out and only 39000 miles. My mods worked well till a RAINY day in May and 5" of water at 1-2 miles an hour, at 1200rpm HYDRO-LOCKED the motor.........2 rods cracked the block and it was BYE-BYE to a my ole faithful LS-1.......Hello, LS376/525 crate engine from GM. I am now configuring a similar system to the C-5 Corvette with a intake bridge and a ram horn split filter if it will fit. The SLP down duct work is not totally to blame for the death of my LS1. The air dam that smooths under car air flow was positioned with a forward angle to scavenge more air to enter the SLP duct. The duct was extended with additional sheet metal and increased efficiency by 25%..........this works fine with 02, not with H20.....that's air not water, for those of you that slept thru Chemistry. My only concern now, after paying off my creditcards 10,000.00 balance, is the positioning of this new CAI and MAF. The LS3 motor in the 525 hp asa cam version is particular to the MAF position from the TB and current opinion is 10 " away and in a straight section of tube, also the resisters in the Granatelli 85mm MAF may not communicate well with the aftermarket tuners, so I guess its HP professional tuner time. Sure hope this Bad Boy doesn't eat my 4L60E and 10 bolt rear end, but I can't wait to see the vet owners and new Camaro guys listen to that 110LSA, then I crack the electronic cutouts open, and see if these Nitto sticky tires can hold on to the road, while the other guys try to find a gear that works...............stay away from puddles.
Current Mods:
SLP CAI, 160 deg. thermos, competition harmonic balancer,4L60E shift kit, 3400 rpm stall converter, 373 rear end gears, granatelli 85mm maf ,Diablo predator reprogram, dual exhaust.224/224/581/581 comp cam with 114lsa and dual springs.
SLP Dual Tip Tailpipe Assembly Yukon Denali and Escalade use w/Factory Stock Exhaust 6.2L; 2007-2013
Mostly Visual but worth the $By:
LbstoneOwnership:
1 month - 1 yearGreat Product that's easy to install. I noticed only a slight increase in the sound on startup but no difference while driving. The only difference while driving was some burbling on deceleration. Even swapping out the factory muffler only slightly increased the sound.
Current Mods:
K&N intake, magnaflow muffler swap, SLP rear section (resonator delete) and BlackBear Tune
Show More Reviews for SLP
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