Daytona Twin Tec TC88A Ignition Kit for Harley Davidson 2004-06 Twin Cam 88 and Manufacturer Part No : 3088 Includes TC88A ignition, coil (2008), wire set (3002) and USB-INTF interface and software for down loading built-in data logging and programming custom advance curves Fits 04-06 Twin Cam 88 and Sportster carbureted models with new 12-pin ignition module Note: Not legal for sale or use on pollution-controlled vehicles