Dynatek 2000 TC Digital Performance Ignition System For Harley Sportster Dyna Dspt-1 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. Features: Single-fire, programmed performance ignition 16 programmable advance curves in three groups 8 rev limiter settings in 250 rpm steps from 5750-7250 rpm All functions offer full digital accuracy Compatible with stock and performance coils Less than 1 ohm resistance Coil current constantly monitored to provide constant full spark energy Uses all stock sensors and connectors Made in USA