MSD RPM Module Selector

The MSD RPM Module Selector plugs directly into the rpm module socket on all MSD 6A, 6AL, 7AL-2, Soft Touch Rev Control, and all other MSD accessories that use plug-in modules. The user can then select between twelve different rpm limits by simply turning the knob. Six models are available to cover a range from 3,000 rpm to 12,800 rpm in 200 rpm increments.