I was not aware Garret made a 56 trim(besides a GT30). Boost level is most certainly relevant. I've never known anyone to "tune" by boost.
Most tune by A/F, EGT, and / or timing. However... I didn't even ask how you tuned man. Simply what turbo, and how much boost.
Last edited by Cronic; Jan 31, 2004 at 02:47 PM.