ESS supercharger isn't really plug and play. I've had a lot of tuning and drive ability issues with mine. Sometimes I wish I had just left the car alone after installing headers. It ran the best then.
BTW no need to do anything to the engine for the SC. It's only putting out 8.5 lbs of boost. Not enough to break anything or blow a head gasket
Dinan CAI &Throttle body, ESS Tuning TS2, Bimmerbrakes gen3 headers, UUC SSK & DSSR. Achilles oil pump, VAC oil pan baffle
M3 Motor mounts, UUC Trans mounts, Modified clutch style LSD 3.15, TMS front subframe reinforcement, Koni Yellow sports,
H&R sport springs, UUC sway bars, BMW Perf. Rotors, UUC SS brake lines, Hawk HPS pads, CSL replica wheels,
Rotora strut bar, FXR HID conversion, M3 Mirror conversion, BSW stage 1 speakers