The Pontiac G8 blends modern performance with classic muscle car DNA. Upgrading to long tube headers and a performance exhaust system increases horsepower, improves throttle response, and gives your G8 the aggressive V8 sound it deserves.
Stainless Works designs premium performance headers and exhaust systems specifically for Pontiac G8 platforms, engineered to maximize exhaust flow while maintaining durability and reliability for street and high-performance builds.
Stainless Works exhaust systems for the Pontiac G8 are designed for LS-based engines, including the 6.0L (GT) and 6.2L (GXP) platforms. Built from mandrel-bent 304 stainless steel and TIG welded for strength, these systems improve exhaust flow and unlock real horsepower gains.
Shop Pontiac G8 performance parts:
All systems are proudly Made in the USA and backed by a lifetime warranty on materials and craftsmanship.
How much horsepower do headers add to a Pontiac G8?
Typically 15–30 horsepower with proper tuning and supporting modifications.
Which engines benefit most?
Both the 6.0L (GT) and 6.2L (GXP) engines see strong performance gains.
Do I need tuning after installing headers?
Yes. A tune is recommended to maximize performance and ensure proper engine operation.
