MSD 87431 3000 Series Module Kit, Odd Increments, Kits include five modules

MSD 87431 Ignition RPM Modules 3100 to 3900 rpm Set of 5

Engine RPM Limiter MSD 87431

MSD Ignition RPM Module Chip Kit 3100-3900 RPM - 200 RPM Increments

MSD IGNITION 3100-3900 RPM Odd Series Module Kit- 87431

MSD Ignition 87431, RPM Module Chip Kit 3100-3900 RPM 200 RPM Increments Odd

MSD Ignition 87431 | Odd Series RPM Module Kit 3100-3900 RPM