MSD ASY11539 6800 RPM Rev Limiter Module Chip

The MSD ASY11539 is a plug-in 6800 RPM rev limiter module chip designed for use with MSD ignition systems. Changing your rev limit is as simple as swapping out RPM modules — no tools or tuning software required. This single chip sets the engine's rev limit at a precise 6,800 RPM, making it a popular choice for IMCA Modified classes running a GM 604 crate engine.

Key Features:

• Sets rev limit at exactly 6,800 RPM
• Plug-in design fits directly into the RPM module socket on compatible MSD units
• Compatible with all MSD Soft Touch Rev Controls, MSD ignition boxes with integrated rev limiter, and other MSD accessories that accept plug-in RPM modules
• Sold individually — single chip per package
• CARB Executive Order (EO) compliant — legal for sale and use on emissions-controlled vehicles in all 50 states when used per the manufacturer's application guide

MSD RPM module chips are the fast, reliable way to dial in your rev limit for racing classes with strict RPM rules or any performance application where engine protection at a specific RPM ceiling is required.