Z1 Motorsports: 326rwhp with Stock exhaust

Megan370z

good job , even if think the dyno seem to read on the high side ..
it is still an impressive gain from 272 to 326.

is there a possibility to get some spec on those Momentum header ?

primary size and at the collector exit ?


edit; I found the spec I was looking for.. not surprised of the gain anymore... I saw a few place they were listed at over 1200$ !!!
since Mike got 342whp STD with these . with some more research in the headers design and exhaust + some other work somewhere else . I would estimate an 360whp STD on your dyno is possible without those JUN ext. cams

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