Daytona Twin Tec Tc88A Ignition Kit For Harley Daytona Twin Tec Tc88A Ignition Kit Includes Tc88A ignition, coil, wire set and PC Link USB cable (Tcfi-C), a Intf interface and software for down loading and programming custom advance curves. Features: Wide timing advance adjustment range accommodates stock to highly modified engines Digitally set RPM limit (100 RPM steps) Selectable multi-spark mode for quick starting and smooth cruise Coil outputs protected against short circuits Optional USB interface and software for programming custom advance curve Billet aluminum housing with black anodized finish Easy plug-in installation Supports all sensors including theft/security module Optional USB interface 382-810 and software for downloading built-in data logging and programming custom advance curves Works on carbureted Twin Cam and Sportster models with 2-pin ignition module