SLP LoudMouth Axle Back Exhaust for G8 GT GXP 31191

SLP LoudMouth Axle Back Exhaust for G8 GT GXP 31191

Item Code: G85004

Low Price Guarantee!
In Stock


Product Description

Give your Pontiac G8 GT 6.0L (or GXP 6.2L) race-proven performance and a powerful deep muscle-car sound to match, with a Loud Mouth rear-section exhaust system from SLP Performance Parts. This affordable, easy-to-install kit eliminates the two rear factory mufflers entirely, drastically reducing backpressure for enhanced power and a mind-blowing performance sound. (note: This Kit DOES create interior cabin resonance) This system will give your G8 GT or GXP a 10hp increase over stock. This exhaust kit eliminates the two rear mufflers and replaces them with two 16" long 2.5" O.D. stainless steel tubes. Combined with our all-new custom tailored G8 GT 304SS tip, you'll really feel, hear and best of all SEE the difference!

G8 GT 6.0L Loudmouth Axle-Back Exhaust System features:

  • Maximum Flow with straight 2.5" Tubing
  • Lighter than the OEM assembly
  • Installs in under 30 minutes
  • Constructed entirely from stainless steel
  • Two custom tailored G8 GT 304SS tips
  • 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


  • 2008-2009 Pontiac G8 GT 6.0L and GXP 6.2L

Installation Difficulty

Installation Difficulty 3


Write a Product Review