3'' 76mm Electrical Exhaust Control Valve Sets Worm Valve CLOSED Style + Remote

Applicable: 99% gasoline motor car Function: Get the sound of sports car, Remote control and very easy,with electric worm valve Notes: Install front and rear of exhaust drum for naturally aspirated engine, And only install front of exhaust drum for engine that’s on forced induction through a turbocharger or a supercharger. Sounds very nice that in a gasoline engine car. But in diesel engine car that the sound is not as good as in a gasoline engine car. And special diesel engine with turbo, the sounds effect is very badly. Diameter of Butterfly Valve: 3inch 76mm Quantity: 1 pc The Valve Type :CLOSED Made of Stainless steel 304 When the valve is not working, it is closed and it will open at work Professional installation is strongly recommended Note:Not include the battery! Power connection: 12V power supply, three ways to connect 1; Connect the cigarette lighter, 2; Connect the battery (turn off the engine no power, need fuse wire) 3; Connect ACC (turn off the engine without power, need fuse wire)