Dyna TC88-3 is a single fire, fully programmed performance ignition with 16 programmable advance curves and eight rev limiter settings. All functions feature full digital accuracy and full J1850 compatibility with all stock devices. Coil compatibility from stock to performance (less than 1 ohm resistance). Coil current constantly monitored to provide constant full spark energy. Utilizes all stock sensors, stock O.E. connectors and the stock O.E. mounting. Reverse battery and spike protection are also built-in.