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SLP Loud Mouth Exhaust Pontiac GTO 6.0L


Quick Overview

Add a muscle car sound and a boost of power in your Pontiac GTO with this SLP Loud Mouth Exhaust.

Sku # : SLP-Exhaust-Pontiac-GTO-ER3
Are you tired of owning a muscle car that has a 6.0L V8 but sounds like a V6?  Then give your Pontiac GTO race proven performance and a powerful deep muscle car sound to match its engine size with this SLP Loud Mouth Axle Back Exhaust. The secret to the system’s distinctive sound is a pair of stainless Loud Mouth resonators.  SLP specially designed these resonators with a patented design to eliminate drone even with such a free flowing and aggressive system as this SLP loud mouth kit.

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 GTO’s rear valance. 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 valance. T The exhaust system is hand-crafted from 2.5” stainless steel, and is covered with SLP's Limited Lifetime Warranty.

Bolt on a Loud Mouth cat-back exhaust system from SLP on your Pontiac GTO for up to 5 extra horsepower and 5 torque with the aggressive muscle-car rumble your LS2 deserves.


  • Limited Lifetime Warranty
  • Aggressive muscle car rumble
  • Modular design increases exhaust flow
  • Hand-crafted from stainless
  • Easy bolt-on that mounts to SLP’s header system or stock exhaust
  • Distinctive stainless tips that rotate for the look you want

Fits: 2005-2006 Pontiac GTO 6.0L


  • 2005-2006 Pontiac GTO 6.0L Loud Mouth Exhaust (31560)

If you have any questions about this SLP Loud Mouth Axle Back Exhaust For the Pontiac GTO Please give us a call at 714-582-3330

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