Quote Originally Posted by aLmk View Post
What size is that throttle body? I don't think you will find a restriction with the stock manifold or throttle body with just a GT30. Being that turbo setups blow through the throttle body, it's size is much less relevant than on a blower like a roots style blower that's after the throttle body.
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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