2.5 inch Sonic Car Universal Exhaust Pipe 1. T-304 stainless steel, with mandrel bending 2. Electric safety switch kit-made of light CNC machined and anodized T-6061 aircraft aluminum alloy 3. High-performance racing specifications. Proven design Dyno can instantly increase 10-20 horsepower 4. Radical deep sound while ensuring smooth exhaust 5. The electronically controlled exhaust valve flows out; just use the button on the remote control 6. TIG welding type CNC machine tool flange, with pressure resistance and corrosion resistance 7. Increase engine output and efficiency 8. Inlet/main pipe diameter 2.5 inches (63mm) 9. The package includes: Flange gasket x 2 3.8M wire harness x 1 Aluminum V clip x 1 10 inch stainless steel tube x 1 Wireless remote control x 1 Stainless steel flange adapter x 1 45 degree stainless steel elbow sewage pipe x 1 Fixing bolt with lock washer and nut x 1 Electric exhaust cutting kit with gear drive motor x 1