I need a turbocharged zo6

Anyways Jose, aint seen you in a min man, but I am going to get a hx40 for my car and it will cost half the price of a GT series turbo. People are still getting full boost in the low 4k region with that turbo and mid 400 whp on pump gas and mid 500 hp on race gas is realistic. One guy did 653awhp on the hx40 at 40psi, and that was on the small BEP housing... Id definitly say a hx40 is in gt35r terriotory.

Holset Turbos, RESULTS ONLY (COMPLETE INSTALLED SYSTEMS) - DSM Forums

Side note, yes you will be in need of spare drivetrain parts, especially since you want this power out of a 2.3 and even worse with your cars weight...
Personally even if I could do more, Id stop at 450awhp just to avoid the tranny headaches...