6psi in a GS-R.
I plan on upgrading to 8psi after I get all my fuel mods done and everything. I don't want any detonation AT ALL.

I know I could do it myself..but I don't really have time and wouldn't want to screw stuff up. Plus I don't know how to install boost timing controller and MAP sensor controller, etc.

Can't wait to feel that boost and hear the whine of the charger..ooh man :drool: :woowoo: