Quote:
Originally Posted by FD3S
Superspint Stepped headers V1 are considered the one that make the most HP for our cars. Does anybody know if it worths making the transition from Euro Headers to SSSV1 Headers?
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I have SSV1 and SS section 1 with "sport cats". I have this mated to the stock X-pipe and stock mufflers, and paired with the Evolve tune. I noticed a definite large gain in power compared to US-spec exhaust manifolds and section 1. I can't compare with the euro-spec headers, but I did spend a lot of time studying various dyno charts, especially here:
http://www.zpost.com/forums/showthread.php?t=785645
You can see that SSV1 makes significantly more power in the top end when compared to the euro headers.
There are also a lot of people on this forum saying that the SSV1 headers don't fit on the Z4M. Mine fit fine (coupled with new motor mounts), but do vibrate against the transmission cross member very slightly under certain conditions.