Thunder Heart Performance 309-424 Thundermax Pigtail USB Harness

Allows a second port for the communication cable connection to the ThunderMax. It is installed to the bikes 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). Handy for motorcycle models with tight clearances around the ECM such as Dyna, Softail Rocker and 02-05 V-Rod models. Made in the USA Requires ThunderMax ECM with Mini USB communication port beginning November 2012. Will not work on previous model ThunderMax ECm.