MSD Ignition RPM Module Selector Switch 3.0K-5.2K 2005–2010 Ford F-250 4WD With the CRAWL screen

With the CRAWL screen

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MSD Ignition RPM Module Selector Switch 3.0K-5.2K 2005–2010 Ford F-250 4WD With the CRAWL screenThe 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 5,200 rpm in 200 rpm increments. Racers never stop experimenting as they search for every way to wring out more power or handling performance to to gain an edge