Model Number:YC101879 Origin:Mainland China Product item 1:Remote Controller Switch Product item 2:Wireless Remote Control Product item 3:Exhaust Muffler Electric Valve Cutout System Product item 4:Exhaust valve controller SPU:YC101879 Universal 12V Car Wireless Remote Control Kit 13" for Exhaust Muffler Electric Valve Cutout System Dump Remote Controller Switch Application: Universal Features and Benefits: 100% quality assurance tested, more responsive, less expensive, easier to install. Can open and close the exhaust valve from inside the car. Ideal for auto DIY, a perfect replacement. Control independent of drive select. No interference with the standard CAN bus. Dimensions& Material: Size: As picture(Pls check our photos) Package Included: 1x Exhaust Cutout Controllers Kit. (100% Brand New Never Used Or Installed)