Originally Posted by 335twins
interesting, at one point i hit 16psi on drive map, i hope that's normal.
well it wont hurt. I do know the v401 MAPs are more aggressive than the v300 MAPs. You may also be getting throttle closures due to "over boost" which I can't tell until we get some better logs. If so its an easy fix with ATR, as reported with other users...
FYI, I hit ~19 psi mid range with my stock turbo's.
PTF Pro Tune FTW!