Low rev limits are useful for break-in, for towing and for staging a car that leaves on a converter. Because a module-based ignition control limits at whatever value the plug-in module carries, having a kit of five gives you a usable spread instead of one fixed number. This kit covers the 3,000 rpm range in even steps.

MSD 8743 3000 Series RPM Module Kit Features:

• Five modules covering 3,000, 3,200, 3,400, 3,600 and 3,800 rpm.
• Even 200 rpm increments across the kit.
• Plugs into ignition controls that accept rpm limiter modules.
• C.A.R.B. E.O. number D-40-29.