NGK plugs from Kagan Tuning are guaranteed authentic
STG1 Tune 93/E85 Flex Fuel
It installs in minutes and can be removed without a trace on the car
It is a lower cost option for those that don't mind unplugging their adapter after use
OTS E50 option is Multiple OTS maps of 91-93 Oct
BM3 BMW S55 TUNE BMW NGK plugs from Kagan TuningEcuTek BMW S55 Kagan Custom Tuning (F22 80 82 83 M2 M3 M4,) consist of these variations and more. Stock Fuel System, Port Injection Full E85 (Stock Fuel System Stock Turbo or Fuel System Upgrade Aftermarket Turbo) Pump Gasoline 91 Oct, 93 Oct, E30, E50 Race Fuel (ex. 100oct, MS109, C85, X85, Etc) Stock Turbo or Aftermarket Turbo Requires BM3 (Bootmod3) If running an Advanced Third Party PI Methanol FlexFuel controller such as the Motiv Reflex: