1. , Never been used.2. Premium Material with Mandrel-Bends3. High Performance Racing Spec.4. Design Dyno Proven to Instantly Increases 10 -20 Horsepower5. Aggressive Deep Sound while Ensures Smooth Exhaust Gas Flow6. Electrically Controlled Exhaust Valves Outflow; Simply with a Button on the Remote7. TIG Welded CNC Machine Flange for Resistance against Pressure and Corrosion8. Increase Engine Output and Efficiency9. Inlet/ Major Piping Diameter 3 inch(76mm)Note: this is a DIY (do it yourself) kit, please keep in mind that you will have to weld this to your factory/aftermarket exhaust.NO installation instruction included. installation is strongly recommended.NOTE: battery in remote is aviation contraband. so our remote controller without battery, please buy it in your localName:exhaust cutoutType: MufflerContral: Remote contralSpecial Features: turbo sound whistleparts number: PP-KYRouter diameter: 3 inchinstallation: Weldingadvantages: Unpick and washMaterial:Metalcolour:As ShownPackage Contents:2 * Flange Gaskets1 * 3.8M Wiring Harness1 * Aluminum V-Band Clamp1 * Stainless Steel 10 inch Y-pip1 * Wireless Remote Control Unit1 * Stainless Steel Flange Adapter1 * 45-Degree Stainless Steel Elbow Dump Pipe1 * Set Bolts with Lock Washers and Nuts1 * Electric Exhaust Cut Out Kit with Driven MotorrOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.