For those of you with tunes...

SATX370Z

I had my car tuned at uprev when all i had was hfc's, stillen gen3s, and top speed exhaust. my car went from 298 whp to 307 whp. i honestly didnt really feel a diff on the butt dyno. some people have seen bigger gains than me and some people didnt see any real gains at all. you z and my z could have the same exact modds ang get tuned together and one of us will get more results than the other. only way to find out is to throw that beast on a dyno and tune! but if you have mods like that a tune is always a smart idea to get the a/f ratios where they need to be regardless of gains. ive added stillen shorty headers but have yet to do a retune. gonna wait till i get a m370 before i go back to save $$$

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AMS short shifter, Z1 34 row oil cooler, Stillen Gen 3 CAI, Stillen Headers, Kinetix HFC, Top Speed Full CBE with Y-Pipe, NST Crank and Alt pulley, Uprev Tuned, Swift Springs, Nitto Invo 305/30/19 rear shoes.