Dynatek 2000-HDE Programmable Digital Ignition System DD2000-HD2E8P Digital ignition system which may be triggered from the stock Hall effect pick up Can be used with either 1 ignition coil for dual fire mode or with 2 coils for single fire mode Allows you to tailor the advance curve and rev limiter with 4 built-in advance curves and 4 independent rev limiter choices from 6000 to 7500 RPM HD2 For dual fire operation only