Dump valves / Blow off valves

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

QUICK VIEW

Turbosmart BOV Kompact Base O-ring Kit

Turbosmart

O-Ring Kit - Suits Turbosmart compressor cover style Kompact Shortie/VAG BOVs This product is compatible with the following vehiclesAPPLICATIONSVehicle MakeVehicle ModelVehicle VariantFromToEngineNotesUniversal

£13.14£10.95 (ex. VAT)
QUICK VIEW

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)
QUICK VIEW

Turbosmart BOV Kompact Block off Borg Warner KKK

Turbosmart

Billet Blanking plate designed specifically for the Borg Warner EFR, KKK and Ford Focus ST 2.0 EcoBoost Turbocharger. Eliminates the originally fitted diverter valve, required for fitment of external BOV. This product is compatible with the following vehiclesAPPLICATIONSVehicle MakeVehicle ModelVehicle VariantFromToEngineNotesFordFocusST MK 2200520112.5L - FWD PetrolFordFocusRS MK 220092011JZDA2.5L - FWD PetrolFordFocusRS MK 2 50020102011JZDA2.5L - FWD PetrolVauxhallAstraMK 520052011Z20LEH2.0L VXR (H) - FWD PetrolVolkswagenGolfMK 520042009CBFA2.0L GTi - FWD PetrolvolkswagenGolfMK 520062007BYD2.0L Edition 30 - FWD Petrol

£35.94£29.95 (ex. VAT)
GFB DV+ For Ford 2litre and 2.5litre engines
QUICK VIEW

GFB T9354 DV+ T9354 suits Ford, Volvo, Porsche and Borg Warner Turbos

GFB

BY RETAINING THE FACTORY ECU CONTROL AND RECIRCULATING THE VENTED AIR, THE DV+ T9354 IS A PURELY PERFORMANCE ORIENTED PRODUCTGFB'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.GFB’s 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 won’t cost you the Earth! Rather than throwing the entire factory diverter valve system in the bin (like other manufacturer’s “solutions”), the DV+ keeps what works and replaces what doesn’t. 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 GFB’s TMS benefitsExclusive “pilot-actuated” valve mechanism for rapid response at high boostFitment:This valve is suitable for:Ford Focus 1.6 Ecoboost (2010 - 2016)Ford Focus ST 2.0 Ecoboost (2012 - 2018)Ford Focus ST 2.5 (2005 - 2012)Ford Focus RS 2.5 (2009 - 2011)Plus many more... see here for GFB's fitment listNoteLand Rover swapped to the Ingenium engine in late 2015 and the T9354 is not suitable for vehicles fitted with this engine.

£140.50£117.08 (ex. VAT)
Turbosmart Kompact recirc BOV at MSD
QUICK VIEW

Turbosmart Kompact Shortie BOV

Turbosmart

Kompact Shortie Plumb Back (Recirc) - TS-0203-1261Turbosmart Shortie Kompact Series valves have been specifically designed to suit BorgWarner EFR and KKK turbos. They also fit the popular Ford Ecoboost engines.Unlike the standard, plastic valves that use un-reinforced diaphragms and are known to crack under increased boost, the new BW/KKK/Ecoboost Kompact valves use O-Ring sealed piston which, coupled with their billet aluminium construction give them over 30PSI boost handling capability.Designed as a bolt-on replacement of the factory valve on all BorgWarner EFR, KKK and most Ecoboost turbos, the Kompact Shortie Plumb Back provides better boost response and greater boost handling capability.Kompact Shortie Dual Port (Hiss) - TS-0203-1061A fixed 50/50 vented valve, the Turbosmart Shortie Kompact Dual Port valves have been specifically designed to suit BorgWarner EFR and KKK turbos. They also fit the popular Ford Ecoboost engines.Unlike the standard, plastic valves that use un-reinforced diaphragms and are known to crack under increased boost, the new BW/KKK/Ecoboost Kompact valves use O-Ring sealed piston which, coupled with their billet aluminium construction give them over 30PSI boost handling capability.Designed as a bolt-on replacement of the factory valve on all BorgWarner EFR, KKK and most Ecoboost turbos, the Kompact Shortie Dual Port provides better boost response and greater boost handling capability.

£142.74£118.95 (ex. VAT)
QUICK VIEW

Forge Ford Focus ST250, Vauxhall Astra, Corsa, Zafira and Bentley Recirculation Valve

Forge

We recommend servicing your valve every 3 years, or 20,000 miles, whichever comes soonerDesigned as a direct replacement for the OEM valve which is prone to failure when the engine has been tuned or had an upgrade to the engine management software. This valve is complete and ready to install with no fitting kit required.This valve is supplied assembled with our "green" coded spring which is suitable for standard or mildly tuned engines, and also comes with an uprated 'yellow' coded spring. This valve is suitable for:Vauxhall/Opel Astra G or H type Z20LET EngineAstra VXR J TypeAstra 1.6 GTCCorsa VXR 1.6 Turbo Z16LER EngineVauxhall Zafira A or B with Z20LET EngineBentley Continental GT 2003-11Focus ST250 2015 Onwards In The Box:1 x FMDVK04D Valve1 x Uprated Yellow Spring1 x Forge StickerIf you wish to tune this product to fit the needs of your engine, please see the spring tuning kit below.Please note: In certain car models the removal fo the O.E mounting bolts may be better facilitated by grinding down the short leg of the appropriate Allen key to 10mm long

£161.68£134.73 (ex. VAT)
New
QUICK VIEW

T9454 VTA FOR FORD FOCUS ST AND BORG WARNER TURBOS

GFB

DV+ Performance with Blow-Off Valve Sound!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 factory diverter valve commonly found on these turbos has two distinct issues reliability, and performance. Oh yeah, it also doesnt make any noise. Heres how the VTA addresses these problems.Reliability There are two ways in which the factory diverter valve can fail; the un-reinforced rubber diaphragm can rupture, and the metal valve stem that slides in the plastic cap can stick. In both cases, there is a risk to the turbocharger, as the ECU will attempt to compensate for a boost leak by increasing the wastegate duty cycle, which increases the turbo RPM significantly.The VTA features CNC machined billet components that last a lifetime and cannot be damaged by high boost pressures or the associated increased charge temperatures.Performance The factory diverter valve typically operates in only two states either fully open, or fully closed. When it opens at low boost, or during a partial throttle lift mid-corner, it causes increased lag and a noticeably non-linear boost transition, which is noticeable as a distinct step down in power as you roll off the throttle and the valve opens.The VTA however allows the piston to open and close progressively in response to the amount of boost pressure present, so it only vents enough air to prevent compressor surge (the primary purpose of a diverter or blow off valve). This helps to smooth out boost transitions, making the throttle response more linear and predictable, and also minimizes lag introduced by the factory diverter valve.Fitment:This valve is suitable for:Ford Focus 1.6 Ecoboost (2010 - 2016)Ford Focus ST 2.0 Ecoboost (2012 - 2018)Ford Focus ST 2.5 (2005 - 2012)Ford Focus RS 2.5 (2009 - 2011)

£163.80£136.50 (ex. VAT)
New
QUICK VIEW

T9654 DVX Suits Ford, Volvo, Porsche, and Borg Warner EFR turbos

GFB

DVXPerformance with Volume ControlGFBs DVX range takes the extremely popular DV+ Diverter Valve performance and fit, then adds our patented Venting Bias Adjustment Systems from the Respons range of valves. This feature allows you to infinitely vary how much air is recirculated, and how much is vented to atmosphere, giving you total control over your blow-off sound completely adjustable from silent to ear shattering!The DVX is not just a showy noise maker either. Using GFBs proven TMS Technology, whilst retaining ECU control, the DVX solves all the performance and reliability issues that are common with factory diverters AND gives you a blow-off sound thats completely adjustable!    Dual Outlets with patented Venting Bias Adjustment – can be infinitely adjusted between full recirc (silent) and full atmosphere (loud)    Change the venting bias simply by moving the adjustment lever    Retains ECU control for the fastest possible operation    TMS Technology for up to 30% faster boost recovery on gearshift    Direct bolt-on kits include everything you need to install    Manufactured in Australia in accordance with ISO 9001Fitment:This valve is suitable for:Ford Focus 1.6 Ecoboost (2010 - 2016)Ford Focus ST 2.0 Ecoboost (2012 - 2018)Ford Focus ST 2.5 (2005 - 2012)Ford Focus RS 2.5 (2009 - 2011)Plus many more... see here for GFB's fitment listNoteLand Rover swapped to the Ingenium engine in late 2015 and the T9354 is not suitable for vehicles fitted with this engine.

£214.20£178.50 (ex. VAT)