BC RACING COILOVERS ER SERIES - BMW 3 SERIES E46 98-06 (EXCL M3) (TRUE REAR COILOVER) Model-X4 M40i B58 G02 you will hit the engine

you will hit the engine rev-limiter like in a manual car

Flashing and Logging Lisence for use with TRS Tuning

upgraded intercooler

Stage 3 Engine Tuning

BC RACING COILOVERS ER SERIES - BMW 3 SERIES E46 98-06 (EXCL M3) (TRUE REAR COILOVER) Model-X4 M40i B58 G02 you will hit the engineThe BC Racing ER Series is a high performance coilover system featuring external reservoirs and completely separate compression and rebound damping adjustment. It builds on the proven quality of the BR and DS Series but adds far greater tuning control, making the ER Series ideal for drivers who want more precise handling balance on fast road cars and track focused builds. Key Features Digressive piston and damping curve External reservoirs with 30