MSD Engine Ignition RPM Governor P/N:87331

2-Step Launch Control; Dial Adjustments From 1800-9900 RPM [100 RPM Increments];

2-Step Launch Control

• This 2-Step connects right to your late model GM LT engines to produce consistent launches and quicker 60-foot times by setting an RPM limit to stage with. Designed for Manual and Automatic Transmissions!
• Easily set a launch rpm for consistent holeshots
• Connects to the factory coils for easy installation
• Best Way To Achieve Consistent Launches
• Easily Plugs Into Factory Coil Connectors