One other thing....

Whatever this "mod" is that you keep talking about putting on your rx-8... you need to do some more research.

The Greddy Turbo kit is internally wastegated at 6psi "For safety reasons..."

What does this mean??

I believe it means that the Renisis engine you have cannot handle boost too well... It produces a BRUTAL 240 something whp @6psi. Not NEARLY enough to beat Val's Evo, or a STOCK TT Supra... Let alone.... mine...