How To Replace Spark Plugs On A BMW N55 Engine (X5, X3, 335i, & More)
Changed N55 spark plugs - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
BMW OEM Spark Plug for F87 N55 M2 (12120037582)
NGK Spark Plug - 2 Step Colder For N54/N55 – Black Forest Industries