MSD YouTube MSD Twitter MSD Instagram MSD Facebook

Launch Rev Limiter Switch Box

Part No. 7551

Click here to buy online


  • Instantly changes the launch RPM setting of the Programmable Controls
  • Two control dials, one for 1,000 RPM and another for 100 RPM
  • Adjustable from 3,000-12,500 RPM in 100 RPM increments
  • Can only be used with programmable MSD Ignition Controls and Accessories
This handy controller lets you change the launch rpm setting instantly for last second chang­es in track conditions. They plug into the RS232 computer harness and have two rotary dials for adjustments.
For use with Digital 7 Programmable Ignitions
Download Adobe Acrobat