i seem to have the same issue. mods are fmic, full exhaust, Mines ECU, Bee*R panel filter, high flowed turbo and ebc. run it streeter at 14psi no worries. run it at wsid at 14 i get the same issue as shayne. wind down to 12psi ran good, back up to 14psi then shit, then back to 12 it was still shit...duno wtf is going on...get new coils? injectors?..