G8 GT owners looking for GXP horsepower can have it right now by adding American Racing Headers awesome G8 system. Like everything ARH builds, these new systems are made here in the USA using the highest quality 304 S/S. ARH G8 system guarantees outstanding performance with great fit and a very easy install. Other features include 3/8" thick S/S flanges with hand ported inlets and 200 cell metallic substrate cats. Testing on a Mustang dyno showed gains of 38 RWHP and 41 RWTQ (before the tune and Cold Air were installed). This G8 system is a direct fit to your stock or aftermarket axle-back mufflers.
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.
2008 Pontiac G8 GT
2009 Pontiac G8 GT
2009 Pontiac G8 GXP