pureboiracer 0 Report post Posted September 28, 2008 hey guys. am at the piping stage of my turbo build. the outlet of the turbo is 2" i have not yet got a intercooler so dont know what size the inlet is for that. should i keep the piping at 2" until the afm or expand it to 2.5"???? would it make any performance difference??? Quote Share this post Link to post Share on other sites
CamB 48 Report post Posted September 28, 2008 (edited) It depends on your power goal and the size of the other restrictions in the system. Personally I am stepping up to 2.5" straight out of the turbo, and that's on a 2 litre, although my research suggested it was marginal as to whether I needed it even on my top power goal. Partly this was because the intercooler and my throttle body are both 2.5". If you need a 2" to 2.5" elbow, PM me - I have a new one which I'll sell for a good price (not needed). "AFM"? Shouldn't you be removing that and running a MAP sensor based aftermarket ECU? Edited September 28, 2008 by CamB Quote Share this post Link to post Share on other sites
