Dynatek’s TC88 Digital Performance Ignition signals a new era in Twin Cam ignition power and capability. The TC88 enhances the power of the Single Fire ignition by allowing selection between 16 programmable advance curves, covering the entire range of engine modifications. From stock to insanely modified engines, the TC88 provides the widest range and highest level of advance curve functionality for Twin Cam available in today's market. There are also eight different rev limiter settings from 5750-7250 rpm. All TC88 functions have full digital accuracy to insure maximum performance with unparalleled quality. Not legal for use in California on pollution controlled vehicles - Check local laws before installing.