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SLP's PowerFlo® Stainless Steel Exhaust Systems improve the power and efficiency of your 2009-13 Silverado/Sierra equipped with the 5.3L engine or 2009-10 Silverado/Sierra with a 6.0L. They are available with dual outlets, unlike most other systems currently available. You can expect power increases of up to 12 horsepower, depending on which engine you have, and a deep muscle car rumble with minimal interior cabin resonance.
These cat-back exhaust systems feature CNC-mandrel bent stainless steel tubing and a polished, low restriction muffler that meets applicable state and federal drive-by noise standards. All systems include OEM-style hangers and clamps to fit factory attachment points and hardware. Our systems also include high quality polished dual wall exhaust tips that exceed the quality of factory tips.
NOTE: Hanger #31047H is required when ordering for 2010 - 2013 models.
*All necessary installation hardware and instructions are included for an easy, no cutting or drilling installation.
FEATURES: Limited Lifetime Warranty, Hand-crafted from stainless steel, Easy bolt-on installation, Mandrel-bent pipes to minimize exhaust gas restrictions, Distinctive stainless dual-wall 3.5" tips
|Model||Type||Sound Characteristics*||Noise Level*|
(or muffler delete)
|Extremely aggressive; powerful high- and
mid-range tones with moderate resonance
|Similar to original Loud Mouth, but with
a throatier tone and reduced resonance
|Deep, rich, and mellow; minimal resonance|
* Volume and sound quality will vary based on engine and exhaust-system specifications. Loudmouth also refers to some systems without any resonators such as the 2010 Camaro Loud Mouth and the 2005 Mustang Loud Mouth Axle backs where the mufflers are removed altogether. Images below are representations in order to better understand the differences.
History and information about SLP Performance 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, perhaps the best known of which is its SLP loudmouth mufflers exhaust systems. With our SLP Performance parts 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, SLP Exhaust Tips, 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".
You would be hard pressed to question the quality of a product from a company that has been in business as long as SLP and at the same time has garnered an inestimable reputation across the spectrum of vehicle owners from everyday drivers to high performance aficionados. The multiplicity of products offered by SLP is a testament to their desire and willingness to go the extra mile to see to it that you get the right part for your car to improve its functioning whether it be driving to work or aiming for the finish line. ROUSH, the epitome of late-model Ford performance tuning, acquired SLP, the epitome of the late-model GM performance tuning and responsible for the supercharging of Regal GSX, Grand Prix GTX, G8 FIREHAWK, Camaro SS and the LT1 powered Firebird/Trans Am WS6 and that is quite an extraordinary combination and it is even more impressive when you consider the Ford and Chrysler additions to the SLP lineup. This outstanding combination should lead to continued success with an opportunity for the two brands to work together giving them even more access to both innovative minds and outstanding ideas yet maintain their individuality. If you just take a brief look at the potpourri of products on the LMPERFORMANCE web site by SLP you will see exactly what we are talking about when we say this is a company you can trust to meet your high performance needs.
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Reviews for SLP Performance's Other products are show below.
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.
K&N intake, magnaflow muffler swap, SLP rear section (resonator delete) and BlackBear Tune
First mod with opened up fog light surrounds to improve air flow.
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* Shipping/Product Notes: Please note FREE Shipping refers to shipping within the contiguous continental US. All other locations extra. If your order will be delayed, you will be notified via email the estimated shipping date. Please note that we try to have every picture of every part number however some pictures may be representations. If you have any questions please call or contact us for clarification. For Example: Parts such as our clutch kit stages use the same pictures.