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  1. SLP 04 GTO "Loud Mouth" Exhaust System w/X-Pipe

    SLP 04 GTO "Loud Mouth" Exhaust System w/X-Pipe

    $789.99

    SLP 04 GTO "Loud Mouth" Exhaust System w/X-Pipe

    Looking for the ultimate GTO cat-back system? Lethal Performance introduces SLP's new GTO Loud Mouth employs an integral X-pipe crossover and specially designed "Shotgun" race resonators to provide superior flow and performance, while minimizing interior drone. The resulting tone is deep, rich, and powerful--the consummate fusion of muscle-car aggression and grand-touring civility. Like all SLP exhaust systems, the GTO Loud Mouth is hand-built from 100 percent stainless steel and carries a limited lifetime warranty.

    Features

  2. Constructed entirely from mandrel-bent 304 stainless steel (2.5" OD)
  3. Equipped with an integral X-pipe crossover for optimum performance and sound quality
  4. Custom-designed "Shotgun" race resonators provide virtually unrestricted exhaust flow
  5. Exclusive modular design allows easy interchangeability between resonators and SLP high-flow mufflers
  6. Features two hand-polished, double-wall tips
  7. Designed to OEM standards of fit and durability
  8. Covered by our limited lifetime warranty
  9. Priced significantly less than competitors' stainless systems
    10. Learn More
  • Stainless Works 04 GTO 3" Chambered Catback System with Oval Tip

    Stainless Works 04 GTO 3" Chambered Catback System with Oval Tip

    $1,271.81

    2004 GTO CNC Mandrel bent Everlast 3" 304 s/s exhaust system. Bolts to factory flanges behind the catalytic converter with dual straight through chambered-round mufflers and 3" x pipe. Exits in factory valence opening with single wide oval tip. All hangers and clamps included.Learn More
  • Stainless Works 04 GTO "Retro 64-65" Chambered Exhaust w/X-Pipe

    Stainless Works 04 GTO "Retro 64-65" Chambered Exhaust w/X-Pipe

    $1,271.81

    2004 GTO CNC Mandrel bent Everlast 3" 304 s/s exhaust system. Bolts to factory flanges behind the catalytic converter with dual straight through chambered mufflers and 3" x pipe. Exits on both sides behind rear tires with 64-65 style splitter tips with 3" outlets. Requires filling rear bumper opening. All hangers and clamps included.Learn More
  • SLP 05 GTO "Loud Mouth" Exhaust w/PowerFlo-X Crossover Pipes

    SLP 05 GTO "Loud Mouth" Exhaust w/PowerFlo-X Crossover Pipes

    $749.99

    SLP 05 GTO "Loud Mouth" Exhaust w/PowerFlo-X Crossover Pipes

    A Modular Exhaust System to Wake Up Your 2005 GTO!

    Bolt on a Loud Mouth modular catalyst-back exhaust system from SLP on your new 2005 GTO for up to 5 extra horsepower and 5 foot-pounds of torque with the aggressive musclecar rumble your LS2 deserves. The secret to the systems distinctive sound is a pair of stainless Loud Mouth resonators, stamped with our SLP logo. The additional performance comes from the free-flow design and our built-in PowerFlo-X Crossover system that borrows a power-building method used in stock car racing. The system features a pair of attractive 3.5 dual-wall stainless steel tips that look great peeking out of the GTOs rear valence. The tips have an angle cut and can angle downward in a traditional style, or rotated 90 degrees so they match the curving shape of your rear valence. The modular design gives you flexibility to change to a quieter Loud Mouth II system in minutes by purchasing a pair of bolt-in Loud Mouth II bullet-style mufflers (#31063). The exhaust system is hand-crafted from 2.5 304 stainless steel, and is covered with our Limited Lifetime Warranty.

    Loud Mouth catalyst-back exhaust system for 2005 GTO features:

  • Limited Lifetime Warranty
  • Aggressive musclecar rumble, louder than our Loud Mouth II system (#31561)
  • Modular design lets you bolt-in a pair of Loud Mouth II mufflers (#31063, not included) for a quieter system
  • Hand-crafted from 304 stainless
  • Easy bolt-on that mounts to SLPs header system or stock exhaust
  • Distinctive stainless tips that rotate for the look you want
    • Learn More

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