Lets see here, you drive around normally, not in boost... So if the boost was set at 10,000psi would it matter? Since you're not driving like a douche the whole time in the first place, does it matter? Do you really think he's driving around with his boost gauge on 15psi the entire time? Ummmmmm, no... he's not. 15psi is a cake walk for these motors, i'd do it non-i/c'd, turbo's are a different walk of life. My m90 car runs 15+psi on a Gen V 2.8 setup, has nothing compared to the turbo car on 10psi. Turbo's FTMFW.