ARH long tube headers long system for the 2004 GTO features 304 stainless steel in 1 3/4″ or 1-7/8″ primaries, 3″ merge collectors, and all the necessary hardware and gaskets for a bolt-on installation. The 2004 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. Note: This system does not come with the x-pipe. Check out our X-PIPE OPTION GTO system.
ALL American Racing Headers Exhaust Systems are for OFF-ROAD use only.
- 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 durabilit