After fighting this build i am finally at 10.5 psi and the onlything left of the ebay turbo kit on my car is the exhuast manifold, down pipe, and inter cooling.... I do not advised to purchase the entire kit..you may use ebay to purchase parts with good reputation but the turbo kit comes with very low grade parts that will not tolerate the forces of a turbo car properly...I be posting on Bimmerwerkz.com M42 turbo build you can read the event over the past 12 months there.