Rotax Max Evo Rave Assembly, with upgrade kit for E-Rave exhaust assembly. This allows you to update your Rotax Max Evo kart engine to the new 'e-rave' module for electronic actuation of the Power Valve Assembly.
Several years into use now, the E-rave is the new era of electronic actuation of the power valve on Rotax Max Evo kart engines, and represents an improvement on user-friendliness and tunability for the Rotax engine.