14psi but it's likely that your car will require your own fine tuning. Search for a post by Ash Powers on setting the ebc. I found his instructions to work well.
Please fill out your profile with mods. Based on your current profile I would recommend sticking to base boost by leaving the ebc off. At a minimum you need a upgraded ecu to run higher then stock boost.
Formerly: ZEVAN (Ca), Evan3zx(ca) Xbox live GT: kidding Me