You are buying on 100% Brand New of2"/2.36"/2.5"/3" Exhaust Control Valve/ Exhaust cut out Valve - Low Preure For Exhaust Catback DownpipeThe drivers uses this valve to control sound when optimum performance is not needed. When the valve is closed, the exhaust is in quiet mode. When fully opened, the exhaust system is in maximum flow mode and therefore the sound of your exhaust is louder. Many Car owners want a more performance oriented sound from their exhaust without being annoying. After the 30 minute installation, Exhaust valve controlallows the owner to open & close the valve. Compatible with all exhaust systems (OEM or aftermarket) that retain the factory E.V.C control.Features- Full control over Exhaust Valve Control at the touch of a steering wheel button- Open/Close Exhaust Valve at any time and instantly- Even on cold starting, flaps can be opened (not poible with OEM / M- Menu)- Delete-R function- Easy 30-minute installation proce with no wire cutting- Completely removable at any time Diameter of Butterfly Valve: 2&2.36&2.5&3.0inch 1inch=25.4mm Please make sure your all dimensions before place order NOTE:Because batteries are contraband, all remote controls do not include batteries and you need to buy them locally. ALL items are Brand New unle stated otherwise on the listing. We sell DIY (Do It Yourself) Items with a few exceptions. We take no responsibility in teaching you how to install. Profeional installation is strongly recommended OUR ADVANTAGE1,Support personalized customization.Such as:Trademark. Sample production.2,Auto parts manufacturers, a wide range of products.3,Product inventory is adequate. It can be shipped within 7working days.4,After you place the order, we will following the whole proce. Ensure your products arrive safely on time.5,Hope you can purchase satisfactory products in this shop. Our machinery