Amazon.com: Set of 8 Ignition Coil Pack with 8 Spark Plugs 3421 Fit for BMW 1 3 4 5 6 7 Series, X5 X6 M5 M6, Alpina B6 B7 B7L, More Replaces OE 0221504470, UF592, 12122158253, SK20HR11 : Automotive
Amazon.com: Sensor 234-5026 234-4876 Upstream & Downstream Air Fuel Ratio O2 Oxygen Sensor Compatible with BMW 550i 11-15 650i 750i Alpina B6 X5 X6 4.4L : Automotive
Amazon.com: ENA Set of 8 Ignition Coil Pack Compatible with BMW Alpina X5 X6 550i 4.8L 4.4L V8 12 13 8 657 273 Replacement for 12138657273 : Automotive