Dougs cut-outs feature a rugged 12 volt DC motor and rotating gate for a leakproof seal every time the cut-out is opened and closed. When fully opened it does not create exhaust flow obstruction that can create a leaky gasket sound unlike butterfly- style cutouts. A pre-wired harness with an illuminated rocker switch is supplied for easy installation.Features:304 stainless steel constructionHigh torque 12 volt DC gear reduction motorSelf adjusting selfc leaning gate for leak proof sealZero obstructions when fully openHarness pre-wired for easy installationReduced size permits greater installation optionsIncludes wiring harness gaskets and hardwareY- pipe and band clamps for simple installation Uncork your exhaust with the flip of a switch from your dash