Synchronizing the ignition timing of the S68 V8 with the instant torque of the electric drive unit requires flawless spark delivery. Prevent high-rpm misfires and ensure consistent combustion by refreshing your engine bay with Genuine BMW coil packs or heavy-duty Upgraded MMX Coil Packs built for extreme cylinder pressures. For owners seeking a substantial, non-invasive power increase without rewriting the complex hybrid ECU architecture, we offer RaceChip GTS5 Black Tuning Boxes. These advanced modules safely optimize sensor data to deliver massive, immediate gains in both horsepower and torque.