Follow along as we install this new MSD Digital-6 ignition control module on our off road truck! See all the details and every thing that comes with this MSD unit in this months issue of Off-Road ...

All of MSD’s ignition control boxes take advantage of the quick spark turnaround of CDI. A step up from the 6A, is the 6AL, which has the addition of a rev limiter.

Basically, it all boils down to ignition control. An aftermarket two-step rev limiter lets you set one (lower) limiter for launch, and a higher limit for when you're upshifting as you accelerate away.