Hey guys we just got in a 05 GTO with a magnacharger and it seems that the LS2/LS7s have there own set of qwirks like the ls1/ls6s. Anyway I have the car running great but at around 5500 rpm under or near WOT the car acts as if it is hitting a rev limiter or what i suspect to be more of a torque based ETC contolled limit. How do i verify this and has anyone else seen this?