I have searched on this a few times over the last couple days but haven't really found anything that helps me. I odered a jwt ecu and need to know what the max boost I can run with it. My car is running 12psi at the moment and doesn't run lean when under full boost without the chip. All I have at the moment is a catback exhaust, .045 boost jets, and a pop charger. I have heard with the chip its only safe to run 12.5 psi but others say 14psi. Would I have to upgrade intercoolers before I run 14psi? I plan on upgrading to a EBC in the next week or so and I want to do away with the boost jets. The thing is I don't want to get one unless I can run more than 12.5psi. Sorry for the long post but I wanted to be somewhat thorough. Thanks guys for any help.