Tuning your RPM-activated MSD control has never been easier than with a set of MSD RPM Modules. Sold in units of five, these quality-made modules are available in 200 RPM increments.
The range stretches from as low as 3,000 RPM to 11,800 RPM. Either way, so long as you use them in accordance to the manufacturer’s application guide, they’re legal for use on emissions-controlled vehicles. Your MSD RPM Modules are backed by a limited warranty.