Allows most Big Twin and XL models with Delphi EFI to be converted to a carb fuel system All functions of the turn signal/security module continue to function normally Uses existing wiring harness with no modifications needed Includes required software and detailed instructions Made in the U.S.A. Requires the separate purchase of USB interface PART #2101-0075. Requires the separate purchase of a Pingel fuel injection-to-carb tank fitting kit PART #0705-0031.. CONTROLLER FI TO CARB