I have a 97 b18b in my crx and im throwing a greddy turbo on it i am planning on boosting around 8 psi.....i am going to upgrade my exhaust piping....what size should i go with??? i have a apex'i N1 muffler, i was thinking around 2 1/2" mandrel bent will this be good??
thanks!
EF8SIR

 

I should think that 2 1/2" mandrel would work out quite nicely in that context. In fact, unless I am mistaken, you may find that 3" exhaust would be "too" big for this application. You would have to confir with the greater HT minds to verify this though.

 

2 1/2 is cool.

 

go with 3 inch, it frees up the back pressure. Any boosted car you want to go with 3" piping!