1* Flange Gasket 1* V-Band Clamp 1* Stainless Steel Y-pipe 1* Wireless Remote Control Unit 1* 45-Degree Stainless Steel Elbow Dump Pipe 1* Set of Bolts with lock Washers and Nuts 1* vacuum pump valve 1* Air pump box with 1*11ft Wiring Harness 1* 11ft Rubber hose 2* Hose clamp 1* joint clampDetails and Specification: SKU: ES00137S2.5 Mounting Position: Medium Material Type: Stainless Steel Special Features: Exhaust adjust Type: Dissipative Muffler Item: vacuum exhaust cutout Size: 2.5 inch Weight: 3345g Feature: Exhaust sound Value: Vaccum Value* Unleash the power! No more walking under your car or truck to open the exhaust. No need to run the loud muffler all the time to get maximum horsepower. With our exhaust kits, you get the best of both worlds. * Quiet street, riot zone! Even if you're already enjoying an aftermarket exhaust system, you can go from stealthy quiet to full open power and experience the benefits. You control the volume, you control the power. Open your exhaust with the switch. Run it off, run it always on or anywhere in between. * Adjust back pressure to save gas. Whether you call it an electric exhaust cutout, exhaust dumper, or electronic cutout, you know you're getting the ultimate exhaust upgrade for your car or truck. * With the flick of a switch or push of a button, you can go from quiet to riotous. You are in control! Our warranty period is 3 months, if you have any questions, please feel free to consult.