Follow along as we install this new MSD Digital-6 ignition control module on our off road truck! ... A single stage retard step that can be activated when 12 volts are applied.

MSD’s ARC module for example, ... at a pre-programmed rate, the module’s software will retard the ignition timing and/or rev limits in order to prevent excessive wheel speed.

But in the case of the new Digital 6 Plus ignition control module from MSD (PN 6520), the benefits of an adjustable two-step engine-speed limiter, top-end timing retard, ...

In the past, you would have had to purchase multiple MSD modules, retard boxes, and window switches to get all the features that this one box offers, not to mention the accuracy of DIS plus the ...