HARLEY ThunderMax Tune Up Kit Fits 2017-2020 FLT, Air Cooled and Twin Cooled TBW

ECM designed specifically for EFI equipped models is fully assembled ready to install with no wire cutting or splicing required. Simply replace the factory ECM and o2 sensors load a map and get on the road. System includes ThunderMax Performance Engine Control Module (ECM) two wide band Bosch 5 wire 18mm oxygen sensors with AutoTune Connection Harness and USB cable. Easy to install and simple to use. Increases engine performance and privides a cooler smooth running engine with adjustable idle speed and Rev limit control. FITS HARLEY: 2017-2020 FLT, Air Cooled and Twin Cooled TBW