ARH's long tube headers long system for the 2004 to 2006 GTO features 304 stainless steel in 1-7/8" primaries, 3" merge collectors, our 3" X-Pipe and all the necessary hardware and gaskets for a bolt-on installation.

The GTO American Racing Headers long system was designed to bolt-on to your factory axle-back or any aftermarket axle-back. A simple cut and clamp modification (but no welding) may be required.

Product features on this system includes:

• 100% Made in the USA - Never Outsourced
• Made entirely of 304 stainless steel
• 3/8" thick laser-cut flanges for a warp-free seal
• Hand-ported TIG welded inlets
• Optimized primary tube routing for superior fit and performance
• Merge collectors with scavenger spikes
• Catted systems feature 200 cell metallic substrate catalytic converters for extreme durability

Attn. All ARH products are exclusively manufactured for racing purposes. Installing these products on any vehicle eliminates the legal use, in any capacity, on public roads/highways and may be subject to fines and/or criminal liability as per the Clean Air Act.