Dump valves / Blow off valves

We carry a good stock of popular Fiesta compressor bypass valves or dump valves and blow off valves as they are known.

Forge Motorsport Valve Service Kit

Forge

For info on how to service your valve, click on the 'Instructions' tab above or visit Forge Motorsport guides hereTo order the correct part, you will need to the know the Forge product code of your valve. This will start with 'FM' and will be located on your original purchase receipt, or on the side of the product box. By servicing your valve/adaptor at regular intervals, you can ensure that your Forge Motorsport product will last a lifetime.Each service kit varies depending on which product you need it for: Valve service kits ONLY contain replacement "O" rings, piston, and grease. Blow off adaptor service kits contain ONLY replacement "O" rings and bolts. The splitter valve service kit contains a replacement brass piston and spring.   Valves that have O-rings situated on the piston will not come with a piston as the wear is on the O-rings rather than the piston itself.Valve Service Kit Instructions 1Valve Tightening Instructions V3 3Please Note: In line with our policy to constantly review, revise, and improve our product range, the appearance of the product you receive may differ from the one advertised. 

£17.54£14.62 (ex. VAT)

GFB T9358 DV+ (Suits Mercedes, Ford and Volvo)

GFB

European manufacturers are pushing their engines to the limit. Get a DV to match.GFB's DV+ diverter valve range offers a direct-fit performance solution for the weak factory diverter valves used on many modern vehicles. By retaining the factory ECU control and recirculating the vented air, the DV+ is a purely performance-orientated product.GFBs DV+ design solves the longevity and boost leaking issues that are common with factory diverter valves, and also changes the operation method to pilot actuation to ensure better performance on stock or modified engines.Furthermore, these benefits wont cost you the Earth! Rather than throwing the entire factory diverter valve system in the bin (like other manufacturers solutions), the DV+ keeps what works and replaces what doesnt. It retains the factory solenoid and ECU control to ensure simple installation and reliable operation.10% faster opening, 50% faster closing than the factory diverterRetains the factory solenoid for seamless integrationReplaces plastic valve parts with metal for reliability and strength on stock or modified enginesDirect-fit replacement with GFBs TMS benefitsExclusive pilot-actuated valve mechanism for rapid response at high boostClick for fitting instructions

£112.96£94.13 (ex. VAT)

Ford Fiesta 1.0 EcoBoost (2013-current) Kompact Plumb Back

Turbosmart

Turbosmarts new Kompact VR09 Plumb Back for the 1.0-litre EcoBoost is a billet aluminium replacement for the Fiestas factory plastic BOV.The Plumb Back is a full recirculating valve for quieter operation and OEM-style operation, with all the performance benefits of a Turbosmart BOV. The standard bypass valve on the 1.0-litre EcoBoost engines is a weak, plastic, diaphragm-type valve a type of valve that has a track record of failures. Turbosmarts billet aluminium replacement is manufactured with precision, designed for unlimited boost holding capability, excellent response times and heavy-duty reliability.Installation is straightforward, and the valve is a bolt-on direct replacement for the factory valve. No special tools are required and all necessary hardware is included.The Kompact VR09 is precision machined, hand assembled and individually quality tested in Australia to the highest quality standards.

£145.14£120.95 (ex. VAT)

GFB T9458 VTA T9458 DV+ Performance, blow off valve sound!

GFB

The VTA is a performance blow-off valve solution for Mercedes vehicles with an electronic factory diverter valve.If you want sound with your performance (or performance with your sound!), GFBs VTA delivers just that! By combining the proven performance benefits of our ground-breaking DV+ with atmosphere venting, the VTA delivers an aggressive blow-off sound, improved throttle response and boost recovery, as well as superior boost holding and reliability in extreme conditions.The VTA shares the successful DV+ design philosophy:Keep what works, replace what doesntThis means we retain ECU control and the solenoid from the factory diverter to ensure the fastest possible response time, without the added and unnecessary cost of replacing the solenoid like some brands do.The weak part of the factory diverter has always been the plastic valve mechanism this is the part we replace. The VTA features CNC machined billet components that last a lifetime, and we also change the valve operation method for better performance. The factory diverter valve can only operate in two states open, or closed. When it opens fully at low boost, or during a partial throttle lift mid-corner, it causes increased lag and a noticeably non-linear boost transition.GFB pioneered the use of pilot operation in the DV+, which works by re-purposing the factory solenoid to control the pressure behind the piston rather than the piston itself. This allows the solenoid stroke to be much shorter, speeding up the response time and increasing the actuation force. More importantly, it allows the piston to open and close progressively in response to the amount of boost pressure present, which smooths boost transitions and reduces the lag caused by the factory diverter valve.It is this design philosophy that makes the VTA not only the best performing blow off valve solution, but also the best value on the market.Key features:TMS Technology for faster boost recovery on gearshift and during throttle modulationImproved boost holding abilityAtmosphere venting for blow-off soundRetains ECU controlSimple, direct bolt-on kits include everything you need to installManufactured in Australia in accordance with ISO 9001VTA or DV+?Depends if you want sound or not. Both valves are constructed with the same quality materials and valve mechanism, and both offer the same performance and reliability benefits. However, the VTA vents to atmosphere for sound whilst the DV+ recirculates the air to keep it quiet.Why choose a VTA over a BOV spacer?BOV spacers are cheap and they make sound. But thats it. All the inherent performance and reliability issues you get with the factory diverter valve remain, because a spacer doesnt change the diverter valve in any way. The VTA improves the operation of the diverter valve for sound AND performance.Why choose a VTA over a kit that includes a solenoid?Because theres no performance benefit to replacing the factory solenoid, only a much higher price! If a VTA with the factory solenoid can open in a couple of hundredths of a second, why pay more than you need to?

£155.23£129.36 (ex. VAT)

Ford Fiesta 1.0 EcoBoost (2013-current) Kompact Dual Port

Turbosmart

Turbosmarts Kompact Dual Port for the 1.0-litre EcoBoost is a billet aluminium replacement for the Fiestas factory plastic BOV.The Dual Port is a 50-50 recirculation/vent-to-atmosphere valve for that classic vent-to-atmosphere BOV sound at high boost, and quiet operation at low boost. The standard bypass valve on the 1.0-litre EcoBoost engines is a weak, plastic, diaphragm-type valve a type of valve that has a track record of failures. Turbosmarts billet aluminium replacement is manufactured with precision, designed for unlimited boost holding capability, excellent response times and heavy-duty reliability.Installation is straightforward, and the valve is a bolt-on direct replacement for the factory valve. No special tools are required and all necessary hardware is included.The Kompact is precision machined, hand assembled and individually quality tested in Australia to the highest quality standards.

£201.54£167.95 (ex. VAT)

Turbosmart BOV Kompact EM Plumb Back VR22 (Ford Fiesta ST)

Turbosmart

The Multiple Award-winning Kompact EM Series of Upgraded Diverter Valves are the world's first truly plug and play Upgrade solution for your factory diverter valve. Unplug and unbolt your OEM Valve, and install a Kompact EM Valve in its place. No adaptors, hoses or extra assembly are required.The Kompact EM Valve Series from Turbosmart takes the motorsport proven billet valve technology and adds an onboard proprietary solenoid system and internal pressure control channels for a simple plug & play valve with full OE integration and control. There are no reference hoses, no separate solenoids and no fiddly bits Bolt-on & plugin!You can count on unmatched performance & reliability as a direct replacement for your factory diverter valve. The Kompact EM Valves overcome the common faults associated with plastic factory valves through our Boost-Balance Valve Design (The more boost you have, the better it seals), Positive Seal O-Ring on the Piston's face and Billet Construction. No matter your application, the Kompact EM Series will hold more boost and be more responsive in any environment.Available InDual Port: TS-0223-1078Plumback: TS-0223-1278Key FeaturesBoost-Balance Valve TechnologyPatented integrated pressure controlTrue plug and play upgradeIntegrated proprietary high-temperature solenoid valveBillet construction with high temperature o-ringsFitment available in Plumback or Dual Port optionsUSA Patent: 10,781,745AUS Patent: 2018253619Suitable for the Mk7 Ford Fiesta ST 1.6L Turbo. Please look up the vehicle application list for up-to-date applications and confirm if this is the right product for your application?

£232.74£193.95 (ex. VAT)

Turbosmart BOV Kompact EM Dual port VR22 (Ford Fiesta ST)

Turbosmart

The Multiple Award-winning Kompact EM Series of Upgraded Diverter Valves are the worlds first truly plug and play Upgrade solution for your factory diverter valve. Unplug and unbolt your OEM Valve, and install a Kompact EM Valve in its place. No adaptors, hoses or extra assembly is required.The Kompact EM Valve Series from Turbosmart, takes the motorsport proven, billet valve technology and adds an onboard proprietary solenoid system and internal pressure control channels for a simple plug & play valve with full OE integration and control. There are no reference hoses, no separate solenoids and no fiddly bits - Just bolt on & plugin!You can count on unmatched performance & reliability as a direct replacement for your factory diverter valve. The Kompact EM Valves overcome the common faults associated with plastic factory valves through our Boost-Balance Valve Design (The more boost you have, the better it seals), Positive Seal O-Ring on the Piston face and Billet Construction. No matter your application, the Kompact EM Series will hold more boost and be more responsive in any environment.Available InDual Port: TS-0223-1078Plumback:TS-0223-1278Key FeaturesBoost-Balance Valve TechnologyPatented integrated pressure controlTrue plug and play upgradeIntegrated proprietary high-temperature solenoid valveBillet construction with high-temperature o-ringsFitment available in Plumback or Dual Port optionsUSA Patent: 10,781,745AUS Patent: 2018253619Suitable for the Mk7 Ford Fiesta ST 1.6L Turbo. Please look up the vehicle application list for up-to-date applications and confirm if this is the right product for your application.

£245.94£204.95 (ex. VAT)