Professional race teams have been relying on the power and endurance of the 6-HVC Ignition Control and will be excited to see the addition of a rev limiter! The 6-HVC-L Ignition has a built-in rev limiter that will save the engine from overrev damage caused by spins, missed shifts or driver error. This means there is no need to mount an external rev control (i.e., less wiring and reduced weight)! The rpm limit is adjustable with plug-in modules and the wiring is routed into NASCAR approved Deutsch style MSD connectors.