- Electrical, Ignition & Racepak
- RPM & Timing Controls
- RPM Controls
- Two Step Module Selector
This MSD Two Step Module Selector lets you choose from two different rpm limits that can be activated at different times.
• It can also be used with an MSD Timing Control
• Launch rev limiter
• High speed rev limiter
Click here to download the MSD-8739 Two Step Module Selector instructions.