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2-Step Module SelectorUse w/MSD Soft Touch Rev Control or Ignition Control w/RPM Module SocketChoose 2 Different RPM LimitsAbility to Switch Between 2 Different RPM or Degree ModulesAllows Launch Rev Limiter and High-Speed Limiter This MSD 8739 2-Step Module Selector allows you to have a starting line RPM limit for more consistent launches and quicker 60-foot times. It can be controlled by a Trans Brake, Line Lock, or a clutch pedal-mounted switch.FAQHow does a MSD 2 step box work? The MSD 8739 2 step module enables consistent launch RPM control. Activates a secondary RPM limit for improved traction.Does a MSD 6AL have a 2 step? Yes, with the MSD 8739 2 step module kit, the 6AL can have a 2 step.
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