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If you're looking to for increase performance
Exact Model Year
0L features 304 stainless steel 1 3/4" primaries
an ARH GT350 Full System will deliver the exhaust sound and power to match the aggressive look of your GT350
Pontiac GTO 2004-2006 Long System (X-Pipe Option) F250 If you're looking to forARH'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:
