rpm module selector plastic black 6000-8200 rpm 200 rpm increments each

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.