6Aln Control Extreme Duty 6Aln Can Handle The Harshest Racing Environments, Includes A Built-In Rev Limiter MSD IgnitionOriginally designed with NASCAR in mind, the 6ALN is equipped with the mandatory 6 Pin Weathertight connector to meet NASCAR's ignition wiring rule, 20 6. 1. This special connector provides a tight, positive locking connection with individual seals to keep dirt and moisture away from each connection. All of the MSD's primary wiring meets MIL 86A specifications with special tinned conductors for superior crimps. Inside the strong cast aluminum housing,