Piston Re-Circulating Dump Valve

All the benefits of the piston design but with much less audible “whoosh”. The DV30 is a direct replacement for the factory fitted Bosch dump valve found in a wide variety of cars. The Bosch valve is made of plastic and contains a diaphragm and is known to fail when subjected to too much boost or high temperatures. The DV30 is the perfect choice whether for a standard car or 550bhp fire breathing monster as it is capable of withstanding huge boost pressure and excessive temperatures. The Dv30 is designed to direct the dumped boost back into the air filter or airstream and is generally “silent” in operation. The DV 30 is generally a direct replacement and requires no fitting kit

Bailey Motorsport introduced the piston design of dump valve to the market in 1997. The main advantages over diaphragm dump valves are faster reaction times, increased boost capability and in the case of the EVO range, the ability to work on cars with airflow meters. All Bailey dump valves are CNC machined from aircraft quality stainless aluminium alloy, use stainless steel bolts and rods, lightweight polymer pistons with special state of the art seal technology and are designed to be re-buildable for even greater longevity. Bailey dump valves are fit and forget, require no setting up and come with a 1 year guarantee.

All Bailey dump vales are available in four finishes: highly polished silver, red, blue or black anodised. Please let us know what colour your require when ordering (our online ordering system has a note section for customers to specify the colour.

Vehicle Applications