G8 GT owners looking for GXP horsepower can have it right now by adding American Racing Headers awesome G8 system. Like everything ARH builds, these new systems are made here in the USA using the...

American Racing 2008-2009 Pontiac G8 GT/GXP, Header 1-7/8" x 3", 3" X-Pipe and Conn. Pipes NO Cats G8 GT owners looking for GXP horsepower can have it right now by adding American Racing Headers...

Kooks, 2008-2009 Pontiac G8 GT/GXP 6.0L/6.2L 2-1/2" Axle Back with Mufflers Exhaust System Pontiac G8 (08-09) Stainless. Call or email for shipping quotes.     Pontiac G8 GT/GXP 6.0/6.2L Axle...

Stainless Works The Pontiac G8 is a performer, that’s for sure, with a big V8 and rear wheel drive. And it keeps things classy with 4 doors, so there’s plenty of room for the family or business...

Stainless Works The Pontiac G8 is a performer, that’s for sure, with a big V8 and rear wheel drive. And it keeps things classy with 4 doors, so there’s plenty of room for the family or business...

The MagnaFlow Pontiac G8 Street Series Axle-Back Performance Exhaust System brings enhanced engine sound and dyno-proven performance to your 6.0L, 6.2L Pontiac G8 with a healthy helping of our deep,...