Oh, I know I am just running 4 psi right now with 93 octane. No it is not a precision turbo kit but I got my Ideal from them. The only thing is the intercooler pipes go underneath the chassie so they look really cool because you can see them from the front. The good thing about them is they are flush with the chassie so they wont scrape unless I bottom out. I havent had a problem with that, yet.