Mercury - Command Module Racing Control Module 77-8M0121241. OverviewThis module helps a Verado 80 behave the way it's supposed to when you're running a racing setup. It takes the throttle and shift signals from the controls and sends them through clean and steady, so the engine reacts right away without that odd delay you sometimes feel with older parts. The shared guardian feature also steps in smoothly if something goes sideways. It's a simple little box, but it keeps the whole system feeling