Universal RPM Module Selector (8739) by MSD®. RPM Controls; Two Step Module Selector.
- Allows User To Switch Between 2 RPM/Timing Modules
- Set A Different RPM Limit For The Launch/Overrev
- Improves Consistent Holeshots
- Must Be Used w/MSD Soft Touch Rev Limiter
- Must Be Used With MSD Timing Control
- No RPM Or Retard Modules Are Supplied
Founded in 1970 MSD, LLC is the leader in performance ignition components today's racers need to step up their vehicle's performance. MSD has completely redefined the ignition system by using cutting-edge technology called capacitive discharge (CD) that makes it possible to spark multiple times. The pioneer in research and development of high-performance ignition systems, the company offers the finest parts, including ignition controls, distributors, coils, timing accessories, spark plug wires, and more. Every product that leaves the state-of-the-art MSD factory is rigorously tested to deliver flawless quality and push the performance to the max while improving starting and ensuring smooth idle. That's why MSD is the number one ignition choice for performance fanatics and hardcore racers in NHRA, IHRA, NASCAR, World of Outlaws, DIRT, SCORE, IDBA, and many more.