UNIVERSAL 25MM TURBO DIVERTER RECIRCULATING DUMP BLOW OFF VALVE -ChromeSpecifications:Material: Aluminum AlloyColor: ChromeExternal Diameter: 25mmOther Size: As the pictures shownQuantity: Pack of 1Features:-Large Piston design for higher clamping load-Complete with two tuning springs to fine tune your vehicles set up-It replaces the standard diverter valve which is prone to failure.-This is the best valve for performance and efficiency and will give you a nice， but quiet sound .-All products are tested before selling，they must pass a quality examination.Fitment:Fits for all 25mm fitments( includes Golf， Polo， Passat， Seat Leon， Ibiza， Cupra， Audi A3， S3， A4， TT and many others)Notes:-Please check the size measurement chart carefully before making a payment.-Please allow 0.1-0.5cm difference due to manual measurement.-Please check carefully to make sure whether the item matches to your vehicle or not.-The color of the actual items may slightly different from the listing images due to different computer screen， thanks for your understanding.-This BOV kit does not include fitting instructions and professional installation is highly recommended for those not mechanically minded.Package included:1 x Recirculating dump valve2 x Springs as the photos