the only problem with a turbo v's a supercharger. I'm hitting max boost by 3000 rpm in first gear. meaning 9 and also in 3rd gear from 1,000rpm, i hit 9 psi by 2,000. that gives me a problem of alot of heat and backpressure by the time i hit 5,000 or so, meaning i can't run the boost like a supercharger, tho my motor will get more out of it. The t4 going on instead of a t3 will lower temps in the motor, i'll feel safer then to run it harder