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Dump Valves

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Dump valves (a.k.a blow-off valves) are used to release pressure from turbocharged engines. They are fitted between the throttle body and compressor outlet.

Cars are fitted with valves to relieve pressure as standard, however many racing and motorsports enthusiasts choose to have dump valves fitted. This is mainly due to their superior performance – and the unmistakable sounds they make!

Dump valves prevent pressure from being forced back into the engine and release the air back into the atmosphere. As this excess pressure is released, a hissing sound is produced, which is music to the ears of many a petrolhead!
A Wide Choice of Performance Dump/Blow-off Valves to Suit Your Driving Needs
Here at Compbrake, we stock a range of superior quality dump valves and accessories to help you supercharge your car’s performance. We offer blow-off valves for a wide range of popular car makes and models, in addition to universal valves. Drift fuel pressure gauges are also available – and are ideal for street, rally or circuit cars.

All our dump valve products and accessories are engineered to deliver first-class driving and racing performance. Treat yourself and your car to a high-performance dump valve from Compbrake and you’re sure to notice the difference in performance. You’ll also hear the beautiful hiss that any motorsports fan knows and loves!

You may also be interested in our popular performance-boosting engine mounts.
Brand-new Dump Valves and Accessories Delivered Anywhere in the UK or Internationally!
Our market-leading blow-off valves and accessories can be delivered anywhere in the UK – or worldwide. We even offer free delivery on mainland UK orders of £150 or more!

If you have any questions regarding your order or any of the products in the Compbrake range, please call 01744 895888. Or, simply fill in our Online Contact Form and a member of our team will respond to your enquiry as quickly as possible.

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