I posted on your other page too, but if you're upgrading the intercooler, like getting a PW one you can also upgrade the turbo to an STi setup. It's possible, and really not cost ineffective. The inlet is the same for WRX/STi, and Basco will have to help me as to why the manifold needs to be changed, except that it's plastic vs. metal. The intercooler+y-pipe from an STi should connect to the plastic manifold just fine. It's the little flange on the turbo and intercooler piping that are different. You'll also need to get a different BOV or use a stock one with your setup to use an STi style turbo. It's possible, but you need to be aware of your goals before you pull the trigger. If it's just about getting it up and running cheaply, get a TD04. VF52's go for more than I think they should, as you can get TD06-20G's for around the same price in some cases. Good luck Chris.