Originally Posted by chrischhorn

The only modification required to make it fit is the is HFC's/Test pipes. Other then that, the exhaust system bolts up perfectly. I had issues at first bolting it up to my exhaust but found out later that it was the TopSpeed test pipes that had bad fitment. Not the headers or exhaust. I swapped them to the Z1 test pipes and sure enough, everything lined up perfect. Found out later from 350z guys that the TopSpeed test pipes had horrible fitment even for them on stock headers and their Catback exhausts.