Manufacturer Part Number: 309-324
Requires ThunderMax ECM with serial number 114000 or higher (produced beginning August 2008). Will not work on previous model ThunderMax part # 232661 TBW unit. Installed into the bike's wiring harness at the 36-pin ECM connector (connection requires harness plug disassembly; two terminated wires are inserted into two unused ports in the 36-pin connector, and a ground wire added).