Alright, i will be getting an 88 turbo II this weekend, i wanted to know what size exhaust to get, 3" or 2.5", and where i could find an intake for my car, and around how much horsepower i would gain from these mods.

 

I just did 3 inch downpipe plus straight mandrel bend(no cat no nothing) to an apexi N1 and I tell you it's REALLY loud. I think power gains are noticeable.

 

check racing beat for their exhaust.. as far as intake? i have no clue there..

 

As for exhaust as big as you can fit lol. A turbo motor should see zero back pressure. This is relivant to hp goals to because you dont need a 4in exhaust with stock turbo. So just go with 3in unless you will be making over 400whp.



As for a TID go with 3in as well.