jeff at turbotune, did a good job, isnt cheap for most people though, lol, also i wont be boosting her up anymore, keep her at 300rwkws, 550s wont hold out, it will lean out to much, 20 psi is pushing it with them, so 16 psi will have to do, will still be in the 300rwkw club though, if there is such a thing? lol, hope to see u all there