Improve the sound and performance of your 2005–2006 Pontiac GTO with premium long tube headers from Stainless Works.
Designed with 1-3/4" CNC mandrel-bent primary tubes, these headers are engineered to increase airflow and unlock horsepower and torque gains for your LS-powered GTO.
Each system includes 3" slip-fit collectors and high-flow catalytic converters that transition into 3" lead pipes with a 2-bolt flange for direct connection to the stock exhaust system.
Built from corrosion-resistant 304 stainless steel and TIG welded in Streetsboro, Ohio — engineered for long-term durability and performance.
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American-made from raw material to finished product
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TIG welded by skilled craftsmen for strength and beauty
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Lifetime warranty on material and craftsmanship
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Direct bolt-on fit for 2005–2006 Pontiac GTO
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Pairs perfectly with Stainless Works catback for a full system upgrade
| Vehicle Fitment | 2005–2006 Pontiac GTO |
| Primary Tube Size | 1-3/4" |
| Collector Size | 3" Slip-Fit |
| Lead Pipe Size | 3" |
| Flange | 2-Bolt Flange (Stock Exhaust Connection) |
| Material | 304 Stainless Steel |
| Welding | TIG Welded |
| Catalytic Converters | High-Flow EPA Compliant |
| Connection | Factory Connection Point - Fits Stainless Works and most Aftermarket Exhausts |
| Lead Time | Built To Order — 4 Weeks |
| Warranty | Lifetime |
| Origin | Made in USA — Streetsboro, Ohio |
Sound Comparison and Features — 2005–2006 Pontiac GTO Long Tube Header Kit
Questions? Call us at 800-878-3635 | Mon–Fri 7:30am–4:30pm EST
Built To Order in 4 Weeks — Free Shipping on Orders $50+
