Quote:
Originally Posted by ohoh
I just have hard time believe that you can gain 20whp just by exhaust. Again not calling their are a lair but from what I understand, Nissan engineers did really good job on 370z, I can understand Stillen Gen3 intake add HP, but exhaust? Any FI owner had their car dyno?
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The stock exhaust is actually very restrictive compared to aftermarket ones. Whichever breather mod you do first (intake, exhaust, test pipe/hfc) will give you the most gains. I think the exhaust and test pipes/HFC help more than intakes though.