2008-2009 G8 GT/GXP LoudMouth Axle-Back Exhaust

Free Shipping Price: $399.95 (USD)
Part #: 31191
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Give your 2008-2009 Pontiac G8 GT 6.0L race-proven performance and a powerful deep muscle-car sound to match, with a LoudMouth® 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 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

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
  • G8 GT - 2008, 2009
  • G8 GXP - 2008, 2009
  • Install Hours: 1.5
  • Tools: Shop Tools
  • Install Difficulty: Easy

SLP 31191 Loud Mouth Exhaust Instructions