Stock Nismo and TT?

VQStryker

6 psi isn't enough to gain much power even after a tune. I had the same thing with my first Z until i put it at 9 psi but even then, 9 psi isn't THAT much in the grand scheme of things. As for the exhaust, your stock nismo exhaust is sitting relatively close to 2.5" so if you dont use the catalytic converters and put on some muffler deletes, i feel you would render about the same results as getting a full exhaust.

With that being said, i would recommend 3" of pleasure to your fun meter. You can hear the turbo's (especially on cold start), sounds better and you will gain a little more from it v.s. a 2.5" exhaust but do not expect anything drastic.

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