Originally Posted by White03GT
I wanna know who, if anyone, told you to go with a 90mm tb in the first place lol.
I remember many people, myself included, saying 70mm and maybe 75mm max since you're staying NA. Even with my 70MM throttle body and mostly stock I was running a little lean.
And as far as when you switch to a 75MM there being "slack" there shouldn't be. The throttle body should be the same dimensions length wise as the 90mm but the inlet will just be more narrow. You shouldn't have any problems doing a swap.
2016 Comp Orange GT (current)
Aurora - 2002 Boosted GT! (Sold, sadly)