• Allows a launch rev limiter & a high speed rev limiter
• Different rpm limits can be activated at different times
• Module Selectors can be used with MSD Timing Control
• By plugging Selector into a retard module socket, you can activate different retard amounts at select times
• 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