ur motor needs to be built to boost 10psi and run this system.....u should be able to boost 5-8 psi and use the nx unit with no problems......again almost all of the cars built/ boosted by KMA are built from the bottom up.....SanDawg said:so ur saying if you're boosted and get that...its just like getting an additional 50 shot system...isn't that pretty bad for the motor if it's not built for too much boost?