Quote:
Originally Posted by Jepawa
what makes the 15' nismo different performance wise? have they up graded intake manifold? was looking at the Z1 manifold but, don't wanna "upgrade" if nismo has a better one or comparable. Im not sure what they did to the nismo to make more HP, im guessing tune, exhaust and nismo labels everywhere.<<
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The nismo's extra power comes from a slightly less restrictive exhaust. The 15 also has a slightly different ratio in the rear end for a little extra acceleration.