25MM DUAL PORT Dump Valve - Black Our Dual Port 25mm unit a truly remarkable valve that gives a combination of blow off and recirculation valve operation, all at the same time, and has been specifically designed for the many turbo engined applications that operate metered airflow management systems. This means you get some of the noise of the atmopsheric blow off valve (woosh) whilst retaining the compatibility with the recirculation requirements of the engine management system. As a bonus we also offer the ability to convert the valve to recirculation only mode for those times when stealth running is required. Fits: All 25mm fitments, this includes: All VAG 1.8T Engines (fitted in the Golf, Polo, Passat, Seat Leon, Ibiza, Cupra, Audi A3, S3, A4, TT and many others) Porsche Bi Turbo Units Saab Turbo (check before purchase as Saab have an extremely high number of Turbo engines) Fiat Punto GT & Coupe Renault 5 GT Turbo
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