Have your 75rwhp kit with ATI damper and 10% lower, CAI, and SCT X4 with your tune.. Went to the 1st annual Cold Air Inductions car show end of summer and they dyno'd on their machine. Dynojet numbers were 580rwhp.. Comments were made "that should squash any questions about the quality of a mail in tune".. Well be coming back for more Ted when winter hibernation is over..