This aluminium piston operated recirculation valve is the perfect replacement for OEM valves which can be prone to failure and also vehicle with engine management software upgrades and/ or induction fits. This valve is complete and ready to install with no fitting kit required although professional fitting is recommended. Suitable for wide range of Turbo\'d vehicles including: Ford, Volkswagen, Vauxhall, Skoda, Audi, Seat & Renault etc. Constructed from Premium Aluminium Increases reliability of other induction components including Turbocharger Dump Valve Dumps directly into the atmosphere creating a desirable woos sound. This valve is suitable for: Vehicles with a 25mm connection Vehicles with an airflow meter