NGK 2288 Spark Plug For US E36 M3 S50 (BKR6EK)

Direct fit for all BMW US S50 engines. NOT for European S50 motor. Multi-ground electrodes improve ignition capabilities and are less sensitive to increased voltage requirements due to gap growth. Designed to specific manufacturer ignition requirements, NGK's multi-ground plugs maintain all the features of their standard plugs, including: Corrugated Ribs to Prevent Flashover Pure alumina silicate ceramic insulator, providing superior strength and better heat transfer Copper core to aid in heat removal Triple seals to prevent leakage Available as a single plug or set of 6.