Feature 1Dual-valve exhaust design is easy to control the exhaust volume and air flow for high performance. 2Superior material and delicate workmanship for excellent quality and durability. 3Made to enhance the performance and sound of your vehicle with the touch of a button. 4Easy installation, will open your exhaust for a throatly rumble exhaust note. 5Wireless remote control is convenient and simple for you to operate, more practical in use.SpecificationItem Type: Electric Exhaust ValveMaterial: Stainless SteelColor: SilverInstallation Diameter: Approx 63mm / 2.5inInstallation Method: Direct ReplacementConnection Type: WeldingOperation Mode: Remote Control (With Battery)Fitment: Universal .wang-edit-text{ font-family:'Arial' important; } .wang-edit-text table { border-top: 1px solid 000; border-left: 1px solid 000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000; border-right: 1px solid 000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Electric Exhaust Cut Out with Dual-Valve1 x Wireless Remote Control1 x Controller3 x Power CordNote1.Please check the size of electric exhaust valve carefully, to make sure your vehicle's exhaust valve will fit.2.This is a DIY kit, please remember that you will need to solder to the exhaust by yourself or go to the repair shop to install.3.To avoid the motor stalling, please do not press the button for a long time. Frequent stalling will affect the service life of the motor gear. It only takes 2-3 seconds to fully open or completely close.