Hp800 93 + meth v7, n55 plugs and nxm b58 coil conversion Nexsys b58 coil conversion, n55 plugs gapped at .018, my 110lb son riding passenger seat, dual nozzle 1500cc cp meth injection.
N54 Pure Stage 2 93 boost leak Loud whining noise on acceleration. Sounds like a bad belt or almost like the car is supercharged