MSD RPM Module Chip Rev Limiter Plug-In

The MSD RPM Module is a plug-in rev limiter chip (also called an RPM chip or rev limiter module) for compatible MSD ignition controls. It lets you set the maximum engine RPM, which helps protect the engine from over-revving. It is a simple, dependable form of engine protection for street, strip and racing use.

Key Features:

• Plug-in design: installs in the ignition control's module port and needs no wiring changes or special tools
• Sets a fixed RPM ceiling to guard against valve float, over-revving and related engine damage
• Available in a range of RPM limit values, so you can match the limit to your engine and application
• Built to MSD's usual standards for ignition components, with precise rev-limit control
• Easy to swap for a different RPM chip if your setup or rev target changes

MSD has built high-performance ignition systems for decades. The RPM Module gives you an affordable, reliable way to keep engine speed within a safe range. Check the product line's individual part numbers to choose the RPM limit that suits your build.