We are a supplier from China with 20 years of production experience. We fully consider the various needs of customers when designing DIY electric cutout kits. Our sales market is all over the world. DIY kits provide maximum flexibility for the most compact applications. Application: * Universal Application Fits Most Vehicles with 3" Piping Diameter Exhaust System Specification: 1. Pipings - Made of High-Quality T-304 Stainless Steel with Computerized Mandrel-Bends for Strength and Durability 2. The vacuum pump - Made of Lightweight CNC Machined Anodized T-6061 Aircraft Aluminum Alloy 3. High-Performance Racing Spec. Design Dyno Proven to Instantly Increases 10 -20 Horsepower 4. Aggressive Deep Sound while Ensures Smooth Exhaust Gas Flow 5. Inlet/ Major Piping Diameters: 3.0" 6. Professional Installation is Highly Recommended (No Instruction Included) Details: Part Number: ES00859S3.0 Material Type: Stainless Steel Valve Type: Vacuum Valve Mounting Position: Medium Size: 3.0 inch Feature: Adjust sound Weight: 5.3kg Battery: 2Pcs CR2016 / 1Pcs CR2032 Voltage: DC 12v-24v Control: Remote Control Package Include: 2 x Flange Gasket 2 x V-Band Clamp 2 x Stainless Steel Be-Cut pipe 1 x Wireless Remote Control Unit 2 x 45-Degree Stainless Steel Elbow Dump Pipe 1 x Set of Bolts with Lock Washers and Nuts 2 x vacuum pump valve 1 x Air pump box with 1 x 11ft Wiring Harness 2 x 11ft Rubber hose 6 x Hose clamp As the picture showed Note: a.When you use this kit, the vacuum pump valve will work every 140 seconds to check whether there is air leakage or not. So if you found the valve is closed by itself, you need to check the rubber hose and Vacuum valve if it leaks. b.Remember the high temperature will destroy rubber hose so keep it away from the exhaust pipe when installing it. c.The Air pump box is suggested to install in the car interior which can help it use longer. d.Please make sure you have enough space to install before purchase and make sure your exhaust size is same with the exhaust cutout.