Twin Tec® External Evolution® Ignition Module

The Twin Tec External Ignition Module is designed to fit all Evolution Big Twins and Sportsters® to 1997. It mounts in the stock location and features many easy to program options. Two advance curve families with adjustable advance slopes can be programmed using the external dial switches, or you can plot your own curve using a PC with the optional software and cable kit. Rev limit is digitally set in 100 RPM increments and you can choose between single or dual fire operation, with or without multi-spark. It’s all housed within the compact billet housing that plugs into the factory harness on 1991 and later bikes; earlier models require a separate wiring harness. Backed by a one year warranty.