Twin Tuner EFI Controller

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 36 pin Delphi EFI. Controller increases horsepower 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 compatible with TWIN SCAN II. *NOTE: Not legal for sale or use in California or on pollution controlled vehicles. 2011-2011 FXST 2011-2011 FLST 2007-2013 XL