SLP

"SLP" Street Legal Performance Parts

  • SLP® - Loud Mouth II™ Exhaust Systems
    SLP®Loud Mouth II™ Exhaust Systems
    1
    # sp18839
    Loud Mouth II™ Exhaust Systems by SLP®. Is your car lacking the rumble you crave? Look no further than SLP’s Loud Mouth II Exhaust Exhaust System. Included in the kit are a pair of Loud Mouth II mufflers featuring a straight-through...
    $419.99 - $829.99
  • SLP® - Loud Mouth™ Exhaust Systems
    SLP®Loud Mouth™ Exhaust Systems
    10
    # sp17224
    Loud Mouth™ Exhaust Systems by SLP®. Bolt-on some serious power with a SLP Cat-Back Exhaust System. Also available from SLP is the stainless steel, Cat-Back Modular Exhaust Systems for the Hemi powered car's. It is available in Loud...
    $393.99 - $1,049.99
  • SLP® - PowerFlo™ Exhaust Systems
    SLP®PowerFlo™ Exhaust Systems
    0
    # sp17226
    PowerFlo™ Exhaust Systems by SLP®. Dual Outlet. The only true Dual Rear-Exit Exhaust for 2006-2008 Trailblazer SS! Bolt on a PowerFlo® Cat-Back Exhaust System from SLP on your 2006-2008 Trailblazer SS for up to 12 extra horsepower...
    $262.99
  • SLP® - PowerFlo Resonated Crossover Pipe Assembly
    SLP®PowerFlo Resonated Crossover Pipe Assembly
    0
    # sp29096
    PowerFlo Resonated Crossover Pipe Assembly by SLP®. SLP PowerFlo-X® Crossover Pipe Assembly Designed to replace your factory H-Pipe assembly, they bolt directly to your stock exhaust manifolds. Each assembly is precision bent on CNC...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $419.99 - $472.99
  • SLP® - Loud Mouth II Bullet-Type Muffler
    SLP®Loud Mouth II Bullet-Type Muffler
    0
    # sp29095
    Loud Mouth II Bullet-Type Muffler by SLP®. SLP Loud Mouth II® Bullet Race Muffler offers flow and performance similar to that of our original Loud Mouth® resonator but features a ceramic-wrapped, perforated core that reduces...
    $110.99 - $227.99
  • SLP® - Loud Mouth Bullet-Type Resonator
    SLP®Loud Mouth Bullet-Type Resonator
    1
    # sp29094
    Loud Mouth Bullet-Type Resonator by SLP®. SLP's Loud Mouth® "Shotgun" Resonators offer wide open exhaust flow and race-ready performance with an ultra aggressive sound too match. Standard equipment on our Loud Mouth...
    $89.99 - $188.99
  • SLP® - Blackwing High-Flow Air Filter
    SLP®Blackwing High-Flow Air Filter
    0
    # sp112579
    Blackwing High-Flow Air Filter by SLP®. This Blackwing® Replacement High-Flow Air Filter is designed for use with SLP air boxes. When it comes to industry-leading quality, long-term durability and 'street-legal' performance, SLP is...
    Delivers the ultimate in style and performanceHigh quality construction
    $20.99
  • SLP® - Exhaust Systems
    SLP®Exhaust Systems
    0
    # sp218204
    Exhaust Systems by SLP®. Give your car a powerful deep sound with a Exhaust System from SLP Performance Parts. If you want a system that sounds good on the street and has minimal cabin resonance, this is the system for you.
    Hand-crafted from stainless steelMandrel-bent pipes to minimize exhaust gas restrictions
    $146.99
  • SLP® - Blackwing Cold Air Intake Package
    SLP®Blackwing Cold Air Intake Package
    0
    # sp183929
    Blackwing Cold Air Intake Package by SLP®. This new Blackwing system was designed from the ground-up to maximize air-flow, lower intake air temperatures and produce substantial horsepower and torque gains by incorporating many design...
    Up to +10 additional horsepower and +11 ft/lbs at the flywheelUses a wire-reinforced, reusable and washable blue high-flow filter media
    $230.99 - $409.99
  • SLP® - Cold Air Intake Package
    SLP®Cold Air Intake Package
    0
    # sp183930
    Cold Air Intake Package by SLP®. Designed to pick up cool, fresh air from the high-pressure air stream in front of your engine's radiator, SLP's Cold-Air Induction Package can provide up to 10 additional horsepower. It's designed for...
    Can provide up to 10 additional horsepowerConstructed from top-quality stainless steel for optimum durability
    $356.99
  • SLP® - Air Box Lid
    SLP®Air Box Lid
    0
    # sp183928
    Air Box Lid by SLP®. Gain up to 12 horsepower with an SLP High-Flow Air-Box Lid. This bolt-on unit eliminates the restrictive stock baffles and resonator assembly, significantly improving air flow to the throttle body. All lids are now...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $125.99
  • SLP® - FlowPac Cold Air Intake Package
    SLP®FlowPac Cold Air Intake Package
    0
    # sp183931
    FlowPac Cold Air Intake Package by SLP®. New from SLP, the FlowPac® combinesCold-Air Induction Kit, High-Flow Air-Box Lid, F-Body Smooth Bellows and Blackwing® Air Filter to create a single, jointly engineered package worth up...
    Engineered to help upgrade your vehicle’s power and overall performanceManufactured from high-grade materials for long-lasting service in various conditions
    $341.99
  • SLP® - Loud Mouth™ Stainless Steel Round Bullet-Type Silver Exhaust Resonator (2.5" Center ID, 2.5" Center OD, 14" Length)
    SLP®Loud Mouth™ Stainless Steel Round Bullet-Type Silver Exhaust Resonator (2.5" Center ID, 2.5" Center OD, 14" Length) (310013919)
    2
    # mpn4498132079
    Universal Loud Mouth™ Stainless Steel Round Bullet-Type Silver Exhaust Resonator by SLP®. Resonator Inlet Diameter: 2.5". Resonator Outlet Diameter: 2.5". Resonator Body Length: 14". Resonator Overall Length: 21". Resonator Sound:...
    $83.99
  • SLP® - Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit
    SLP®Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit (M31015)
    0
    # mpn4751380938
    Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit by SLP®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Exhaust System Sound: Aggressive / Loud. Have you ever wished you could change...
    $556.99
  • SLP® - Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit
    SLP®Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit (M31009)
    0
    # mpn4704089980
    Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit (M31009) by SLP®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Exhaust System Sound: Aggressive / Loud. Have you ever wished you...
    $619.99
  • SLP® - Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit
    SLP®Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit (M31007)
    0
    # mpn358734688
    Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit (M31007) by SLP®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Exhaust System Sound: Aggressive / Loud. Have you ever wished you...
    $598.99
  • SLP® - Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit
    SLP®Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit (D31040)
    5
    # mpn358734684
    Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit (D31040) by SLP®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 2.5". Exhaust System Sound: Aggressive / Loud....
    $629.99
  • SLP® - Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit
    SLP®Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit (D31000)
    3
    # mpn358734681
    Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit (D31000) by SLP®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 2.5". Exhaust System Sound: Aggressive / Loud....
    $629.99
  • SLP® - Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit
    SLP®Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit (31675)
    0
    # mpn358734652
    Loud Mouth™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit by SLP®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Exhaust System Sound: Moderate. Have you ever wished you could change up the...
    $1,049.99
  • SLP® - Loud Mouth™ 304 SS Axle-Back Exhaust System with Quad Rear Exit
    SLP®Loud Mouth™ 304 SS Axle-Back Exhaust System with Quad Rear Exit (31049)
    0
    # mpn358734635
    Loud Mouth™ 304 SS Axle-Back Exhaust System with Quad Rear Exit (31049) by SLP®. Exhaust System Type: Axle-Back. Exhaust Tubing Material: 304 SS. Exhaust System Sound: Aggressive / Loud. Have you ever wished you could change up the...
    $944.99
  • SLP® - Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Quad Rear Exit
    SLP®Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Quad Rear Exit (31042)
    0
    # mpn4674280466
    Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Quad Rear Exit by SLP®. With LoudMouth Resonator. Exhaust System Type: Axle-Back. Exhaust Tubing Material: Stainless Steel. Exhaust System Sound: Aggressive / Loud. Have you...
    $419.99
  • SLP® - Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Quad Rear Exit
    SLP®Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Quad Rear Exit (31077)
    0
    # mpn4570238264
    Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Quad Rear Exit (31077) by SLP®. Exhaust System Type: Axle-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 2.5". Exhaust System Sound: Aggressive / Loud....
    $755.99
  • SLP® - Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Split Rear Exit
    SLP®Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Split Rear Exit (M31014)
    0
    # mpn4795719182
    Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Split Rear Exit (M31014) by SLP®. Exhaust System Type: Axle-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 2.5". Exhaust System Sound: Aggressive / Loud....
    $393.99
  • SLP® - Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Split Rear Exit
    SLP®Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Split Rear Exit (31042A)
    0
    # mpn4636994357
    Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Split Rear Exit by SLP®. With LoudMouth Resonator. Exhaust System Type: Axle-Back. Exhaust Tubing Material: Stainless Steel. Exhaust System Sound: Aggressive / Loud. Have you...
    $419.99
  • SLP® - Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Split Rear Exit
    SLP®Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Split Rear Exit (M31023)
    0
    # mpn358734695
    Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Split Rear Exit (M31023) by SLP®. Exhaust System Type: Axle-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 2.5". Exhaust System Sound: Aggressive / Loud....
    $461.99
  • SLP® - Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Split Rear Exit
    SLP®Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Split Rear Exit (31211)
    2
    # mpn358734650
    Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Split Rear Exit (31211) by SLP®. Exhaust System Type: Axle-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". Exhaust System Sound: Aggressive / Loud....
    $419.99
  • SLP® - Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Split Rear Exit
    SLP®Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Split Rear Exit (31201)
    2
    # mpn358734647
    Loud Mouth™ Stainless Steel Axle-Back Exhaust System with Split Rear Exit (31201) by SLP®. Exhaust System Type: Axle-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". Exhaust System Sound: Aggressive / Loud....
    $440.99
  • SLP® - Loud Mouth II™ Stainless Steel Round Bullet-Type Silver Exhaust Muffler (2.5" Center ID, 2.5" Center OD, 14" Length)
    SLP®Loud Mouth II™ Stainless Steel Round Bullet-Type Silver Exhaust Muffler (2.5" Center ID, 2.5" Center OD, 14" Length) (310013818)
    1
    # mpn4498131598
    Universal Loud Mouth II™ Stainless Steel Round Bullet-Type Silver Exhaust Muffler by SLP®. Muffler Inlet Diameter: 2.5". Muffler Outlet Diameter: 2.5". Muffler Body Length: 14". Muffler Sound: Aggressive / Loud. Muffler Configuration:...
    $110.99
  • SLP® - Stainless Steel Axle-Back Exhaust System with Dual Side Exit
    SLP®Stainless Steel Axle-Back Exhaust System with Dual Side Exit (31059)
    0
    # mpn4674280474
    Stainless Steel Axle-Back Exhaust System with Dual Side Exit (31059) by SLP®. Exhaust System Type: Axle-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 2.75". Exhaust System Sound: Aggressive / Loud. Give your car...
    $146.99
  • SLP® - Loud Mouth II™ Stainless Steel Cat-Back Exhaust System with Quad Rear Exit
    SLP®Loud Mouth II™ Stainless Steel Cat-Back Exhaust System with Quad Rear Exit (31043)
    0
    # mpn4699620568
    Loud Mouth II™ Stainless Steel Cat-Back Exhaust System with Quad Rear Exit (31043) by SLP®. With LoudMouth II Race Muffler. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Exhaust System Sound: Aggressive /...
    $419.99




Founded in 1987, SLP provides a range of OEM-quality performance, appearance, and handling components for muscle cars and full-size General Motors trucks and SUVs. Primarily, it built performance engine parts for Chrysler-equipped racing cars. The company was the first to create an integrated emission legal (in all states) performance package for the V8 Chevy Camaro and Pontiac Firebird, which delivered significant performance gains and fuel efficiency improvement.

This first 50-state emission-legal performance package manufactured by the experts at SLP provided a 50 horsepower gain, a one full second reduction in 0-60 mph times, and a 6 mph increase in its top speed. This is something that performance-focused companies never achieved before. Conceived by Ed Hamburger in 1970, today the company is among the leaders in the niche, a master in developing and manufacturing parts for American-designed high performance cars.

Today, SLP has a net of facilities including a powerful research and development center and large manufacture plants. It focuses on quality performance enhancements for American muscle cars, constantly improving its technologies and providing the finest engineering practices, striving to exceed the industry standards. The company's innovations let thousands of customers improve the performance of their cars significantly and get completely new feeling from driving, unavailable with originally-equipped vehicle. Isn’t that a good reason to install its exhaust, engine parts, or air intake to get totally new driving experience? They are perfect high-performance add-ons to your vehicle that will provide an unforgettable driving experience each time you drive your car or truck.

Apart from providing excellent quality, innovative products for your muscle car and totally unique upgrades for it, such as its famous supercharger packages and kits for the Camaro, SLP constantly widens its product line. Among its most demanded and successful products, you'll find cold air intake systems, high-power exhaust systems and headers, brake and suspension parts, body kits, various interior and exterior accessories, and many more. Just like its product portfolio, the range of applications served by the company is also wide. SLP engineers, designs and manufactures high-performance parts for Chevy Camaro and Corvette, Ford Mustang and F-150, Pontiac Firebird, GTP, G8, GXP and GTO, Dodge Challenger, Charger, Magnum and 300, GM/GMC trucks and SUVs.

SLP Reviews

20 reviews
Was a bit hesitant on buying this but was well worth it, it delivered on time and fit perfectly it also gives my old truck a nasty growl. I definitely recommend this item.
Posted by Robert (Monroe, WI) / November 20, 20222000 Dodge Dakota
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