universal  25mm dual port splitter blow off dump valve bov<br /><br />madebillet aluminum.our 25mm dual port valves allows charge to be dumped the charge-air back into the air intake system to keep the onboard maf happy ， and has been specifically designed for the many turbo engined applications that operate metered airflow management systems.<br /><br />specifications:<br />material: aluminum alloy<br />color: black<br />external diameter: 25mm<br />size: as the pictures shown<br />quantity: pack of 1<br /><br />features:<br />-large piston design for higher clamping load<br />-complete with vacuum nipples， short vacuum pipe， jubliee clips and preload washers<br />-recirculating action - quiet <br />-all aluminum construction， black anodisation<br />- boxed and  <br />-it replaces the standard  valve which is prone to failure.<br /><br />fitment:<br />fit all 25mm fitments for golf， polo， passat， seat leon， ibiza， cupra， audi a3， s3， a4， tt ，porsche bi turbo units<br />fiat punto gt &amp;amp; coupe，renault 5 gt turbo and so on<br /><br />notes:<br />-please check the size measurement chart carefully before making a payment.<br />-please allow 0.1-0.5cm difference due to manual measurement.<br />-please check carefully to make sure whether the item matches to your vehicle or not.<br />-the color of the actual items may slightly differentthe listing images due to different computer sn， thanks for your understanding.<br />-instruction is not included.<br /><br />package included:<br />1x 25mm dual dump valve<br />2x 142mm flexible pipe  <br />2x clips