New Dyna 2000i PROGRAMMABLE Ignition module COMPLETE rebuild kit for BIG DOG MOTORCYCLES to replace the legacy Thunderheart unit that is no longer available. This kit will move the ignition module into the nose cone, and the Dyna modules was stock on earlier Big Dogs. This is a full kit that will be able to be plug and play with. Original Big Dog 2003-04 system. For 2002 & earlier models. You might have JST connections so you can use what is in the kit, otherwise crimp or solder or use your own deutsche style connector. Simply route the wires and crimp on the new JST connector, ...