ARH - Long Tube Headers & Connecting Pipes (04-06 Pontiac GTO) LT4 It is constructed with 100%

It is constructed with 100% aluminum and is fully TIG-welded utilizing a furnace brazed sealed core

or in aggressive cornering maneuvers

an aftermarket fuel rail is required for proper clearance

Beware of competitors who say their pushrods are made from the same 4130 material

allowing you to tune the amount of torsional spring rate and determine the handling characteristics (understeer/oversteer) of the vehicle

ARH - Long Tube Headers & Connecting Pipes (04-06 Pontiac GTO) LT4 It is constructed with 100%ARH GTO systems are here to make a statement. Manufactured in 304 S S, these headers are available with 1 3 4" or 1 7 8" primaries. Merge collectors with scavenger spikes are standard along with our bullet proof high flow metallic substrate cats. Expect outstanding performance gains throughout the RPM range and a fit and finish second to none .