Quote Originally Posted by Turpid Porpoise View Post
It's just a 70mm. I realize I won't see any noticeable gains from it, I just don't have an oem throttle body and would rather pay the extra $100 to get a new aftermarket one than a used oem one. I'm only port matching the manifold to eliminate turbulence that would occur from charge air coming in a 70mm tb and then hitting a smaller opening in the manifold.


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:word: That makes sense, but ya your turbo outlet will be the first restriction in that regard, as it is only 2''. Also I don't think you need to go to charge piping larger than 2.5'' till like 800whp or something like that.