Dynatek Two-Stage Rev Limiter DRL-400 Two-Stage Rev Limiter Precisely controls over-revving and launch rpm Launch limits are adjustable from 3,000 to 10,750 rpm; over-rev limit is adjustable from 10,000 to 13,750 rpm Both ranges are adjustable in 250-rpm increments Works only with single-fire, two-coil inductive-type electronic ignitions; not for CDI-type ignitions