MSD 4255 Enhancer Ignition Control Module

MSD offers an all new Digital HEI Module and performance coil that will fire up your stock HEI Distributor. The Module is a direct plug-in for the 4-pin HEI module and will produce up to 7.5 amps of current. This increased energy will continue through racing rpm reaching 9000 rpm! Another unique feature is an adjustable rev limiter. You can dial in an engine saving rev limit ranging from 5000-10000 rpm. The other unique feature of this module is its patent pending technology that can detect if an illegal traction control has been installed. For street cars youll never know this feature is there but for circle track racers that are breaking the rules theyll find themselves with a low rpm limit activated! If a traction control event is detected the Digital HEI module will go into a rev limit mode. To get the most performance out of the Digital HEI Module MSD offers a performance Coil as well. This Coil drops right in place of the original coil and fits under the stock coil cover.