Give your 2008-09 Pontiac G8 GT 6.0L 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 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