HARLEY Twin Tuner EFI Controller Fits 2012-UP FXST, 2012-UP FLST, 2012-2017 FXD,

Twin tuner EFI controller allows easy adjustment of fuel injection to match the requirements of camshafts free flowing exhausts and low restriction air filter performance with can data bus. Controller increases horespower and improves throttle response. Easy plug in installation and interface consists of up & down push buttons and LED display for selection of the fuel trim and spark retard in the RPM and throttle ranges. This controller is compatable with TWIN SCAN II. *NOTE: Not legal for sale or use in California or on pollution controlled vehicles. FITS HARLEY: 2012-UP FXST, 2012-UP FLST, 2012-2017 FXD,