Quote Originally Posted by Goinfasterthanu
I got a new turbo ... to get rid of the ebay one... My problem is the outer sell on the intake side says .60 ar where my old one says .50 ar.. Will i need a retune? The wheels are the same size{ .57/.63} on both ......Will 11 psi still be the same 11 psi? Thanks...
you wont need a complete retune, youll need 30-45min touch up to make sure its ok.

Bigger inlet=more air prob a slight bit leaner.

id bolt the turbo on, and contact your tuner and make an appt for a quick session on the dyno