MSD Three Step Module Selector

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The MSD Module Selectors allow you to choose two or three dif­ferent rpm limits that can be activated at different times. With the addition of an RPM Activated Switch, you can use the Three Step to activate a shift light at different rpm. The Module Selectors must be used with an MSD Soft Touch Rev Control or a Timing Controller with a high-speed retard module. No rpm or retard modules are supplied. Set 3 RPM limits: Burnout rev limiter Launch rev limiter Top End rev Limiter Show more