The points box controls the spark duration and the unique full power firing of the Pro-Mag 12 and 20. The energy from the generator is controlled with field effect transistor (FET) technology, which is far superior to mags still using points as a trigger source. FET s are much more accurate, durable and capable of handling much more current. This is why the Pro-Mag is capable of delivering full energy sparks throughout the entire RPM range of the engine, while conventional magnetos fall short of full power at high RPM. Plus, the electronic points box keeps each spark glowing for up to 26 degrees of crank shaft rotation. Another unique feature of the Pro-Mag 12 is a built in soft touch rev control. The RPM limit is adjusted with plug in modules and will save your expensive engine in the event of driveline failure or missed shift. Plus you can plug in an MSD two or three step module selector to provide multiple RPM limits that can be used during warm-up laps or for consistent hole shots.
- Controlled by a field effect transistor
- Can handle more current
- Built in soft touch rev control
- Durable cast aluminum housing
- Humi seal coating to protect from vibrations and moisture