is it a good idea to use a t3/t4 50 trim on a stock jdm gsr at 8 psi. not sure if i should buy one. i can get it real cheap. thank you for any help

 

That may be a decent match, although I would lean more towards a 57trim (or even a smidge bigger). It should easilly be able to maintain 8psi. What are the ARs for the turbo? Kinda need to know that to tell what kind of spool / response you'll get. The GSR can certainly push it.

Craig