Delivering a flawless, high-intensity spark is mandatory when extracting extra performance from the S63 twin-turbo engine. Prevent high-rpm misfires and spark blowout under elevated boost by refreshing your ignition system with Genuine BMW coil packs or heavy-duty Upgraded MMX Coil Packs designed specifically to handle extreme cylinder pressures. For owners seeking a substantial, plug-and-play power increase without permanently overwriting their factory ECU, we offer RaceChip GTS5 Black Tuning Boxes, engineered to safely optimize sensor data for massive instant gains in horsepower and torque.