Baileys Motorsport car Dimp Valve

After many years of exhaustive testing on a wide variety of both road cars and high powered race cars, Bailey Motorsport introduced the Piston design in 1997. Piston dump valves have many advantages over their diaphragm style counterparts, including faster reaction times, increased boost capability and in the case of our ‘EVO' valve the ability to work on cars with airflow meters, (not possible with diaphragm type dump valves). All 7 types of Bailey Motorsport piston dump valves are precision CNC machined from aircraft quality 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. All valves are tested prior to despatch and come with a 1 year guarantee.