1959-77 Grand Prix RPM Modules Even 7000 - 7800

Limits rpm in MSD 6AL ignition boxes

• NOTES
• NOTE¹: These high-performance items are not eligible for any further discounts or promotional pricing.

These plug-in modules limit rpm (rev limiter) for all MSD 6AL ignition boxes and come in sets of five in two hundred rpm increments, in odd or even numbers (i.e. 3000, 3200, 3400 or 3100, 3300, 3500 rpm etc.). Your choice.