Quote:
Originally Posted by Mikes350z
any gains from a stock to nismo exhaust? I know when I had a 350 a nismo exhaust had no difference in gains but a Nismo S-tune Exhaust did... Sorry just dont know the differences from stock to nismo on the 370's... BUMP!
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The stock nismo exhaust is less restrictive, and gains are possible.
As others have suggested, you may want to look around. It also depends on the other mods you may have done to the breathing on your engine (intakes, cats/pipes, headers). You may need a tune to take full advantage, or you may not.