Product Description:
MSD RPM Module Kits, Available in a variety of RPM ranges, shipping is not included,
RPM Module Kits include five modules in 200 rpm increments. Each kit is within a 1,000 rpm range. For example, the PN 8745 is supplied with: 5,000, 5,200, 5,400, 5,600, 5,800 modules.
Item # MSD 8743- 3000-3800 RPM
MSD 8744- 4000-4800 RPM
MSD 8745- 5000-5800 RPM
MSD 8746- 6000-6800 RPM