Stainless Works 2008-09 Pontiac G8 GT/GXP Headers 1-7/8in Primaries 2-1/2in Lead Factory Connect w/ Cats

Starting with a CNC cut 3/8" thick flanges into 1-7/8" diameter primaries, Flow into 3" slip-fit collectors with merge spike, then fitting onto a set of 3" high-flow catted leads with notched 2-1/4" ID outlets that connects to factory exhaust. This factory connection system works with minor trimming to the OEM leads