The RPM module selector plugs directly into the rpm module socket on all MSD soft touch rev controls and 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. Product Features:RPM Module Selector Plugs Into RPM Module SocketFits On All MSD Soft Touch Rev ControlsUsed w/MSD PN[6420/722/30 And Many OthersSelect Between 12 Different RPM Limits200 RPM Increment ChangesSimple Turn Dial Selector
