i'm upgrading from a t3t4b to a t3t4e turbo and I was wondering if i should get my 2b system retuned for the new turbo?? its currently tuned to about 10 psi w/ the t3t4b... Of course, I won't be driving hard w/ the new turbo until it is properly retuned for max peformance and gains..

Whats your thoughts on this?

 

always. you are cramming more air in you better match the fuel level too.