Compu-Fire, ignition module, wire & coil kit. Electric start

Single fire. For electric start models. With 538405 module with slower advance curves for high compression engines that struggle with detonation issues. Full advance is reached at a higher RPM. Comes with a single fire ignition coil and a set of universal spark plug wires. Note: A tach adapter (MCS 538408) is required to correct tacho-output when using single fire ignition, for correct RPM representation.

Fits: > 70-99 Big Twin (excl. Twin Cam) and 71-01 Sportster (excl. 1200S). Models electric start