BMW multiple engine ignition coils 0221504471 high-performance ignition components

BMW four-cylinder engines N20, B48 ignition coils, OEM 0221504471, with high-purity copper windings and high-temperature epoxy resin packaging. Resists engine bay heat and vibration; life expectancy comparable to OEM; fits 3 Series (F30), 5 Series (G30), and X3 models. Function: step-up low voltage to high voltage to ignite the mixture; reduces misfire. Replacement difficulty medium; remove hood panel, unplug old coil, insert new part.