MSD RPM Module Selector #8671 NASCAR Xfinity 4600 TO 6800 RPM

MSD Engine RPM Limiter Pill Module 8744; RPM Modules 4,000 to 4,800 RPM

8671 RPM Module Selector, 4.6K-6.8K

MSD Engine RPM Limiter Pill Module 8743; RPM Modules 3,000 to 3,800 RPM

MSD RPM Module Selectors 8671

MSD Ignition 8677 Adjustable Rev Limiter Module 1000-3000 RPM

MSD Engine RPM Limiter Pill Module 8745; RPM Modules 5,000 to 5,800 RPM

MSD 8671 RPM Module Selector, 4.6K-6.8K