I've got a T3/T4 on there now. It's a stock h22a4 and I'm possibly looking to get a different turbo(bigger). What would be a good one to upgrade to and be able to retain the stock internals. Help is greatly appreciated.

 

Don't upgrade until you upgrade your internals, you are just asking for trouble.

Build the bottom end, and then get a bigger turbo. A bigger turbo is gonna be a waste if you can't run high boost.

 

what year h22 is it out of? 92-96 was a closed deck block and the other wasnt. You're gonna have to sleeve it sooner or later.