The Pontiac GTO delivers true muscle car performance with modern LS power. Upgrading your headers and exhaust system increases horsepower, improves airflow, and enhances the aggressive exhaust tone that defines the GTO driving experience.
Stainless Works designs premium performance headers and exhaust systems specifically for Pontiac GTO platforms, engineered to maximize exhaust flow while maintaining durability and reliability for street and high-performance builds.
Stainless Works exhaust systems for the Pontiac GTO are engineered for LS1 and LS2 engines. Featuring mandrel-bent tubing and 304 stainless steel construction, these systems improve airflow and unlock horsepower gains.
Shop Pontiac GTO performance parts:
All products are proudly Made in the USA and backed by a lifetime warranty on materials and craftsmanship.
Do headers make a difference on a Pontiac GTO?
Yes. Headers improve exhaust flow and can add 15–25+ horsepower.
Which engines benefit most?
LS1 (2004) and LS2 (2005–2006) respond very well to exhaust upgrades.
Is a full exhaust system worth it?
Yes. Combining headers with a cat-back system maximizes performance and sound.
