Company: Forge Motorsport

Vauxhall Astra, Corsa, Zafira and Bentley Recirculation Valve

Product code: FMDVK04D
£153.97 Inc. VAT £128.31 Exc. VAT (VAT will be added during the checkout process) Estimate Delivery

Prefer to talk over the phone? Call us +44 1452 380999


Product Description

We recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner

Designed 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 Engine
  • Astra VXR J Type
  • Astra 1.6 GTC
  • Corsa VXR 1.6 Turbo Z16LER Engine
  • Vauxhall Zafira A or B with Z20LET Engine
  • Bentley Continental GT 2003-11


In The Box:
1 x FMDVK04D Valve
1 x Uprated Yellow Spring
1 x Forge Sticker

If 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


Check your vehicle compatibility: Click here

Please 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.

Product Reviews

Product Reviews

from on Apr 24th 2017
A high quality product that far exceeded my expectations. Fairly simple to fit with the helpful tip of cutting down the longer leg on an allen key, however I also found tapping a piece of allen key into a spanner was a good option. Retains the stock recirc sound, yet holds boost for a much harder pull. I would highly recommend this!
from on Aug 25th 2016 Verified Purchase
Great fast delivery. Haven't fitted item yet but looks amazing quality, would highly recommend!
from on Aug 19th 2016 Verified Purchase
Quality product sounds almost the same as standard recirc however allows turbo to spool up better,built to last due to no diaphragms internally... id advise to remove the whole air intake to allow better access to recirc on corsa d vxr.

Forge Response.
Thank you for the review, we are glad you are happy with the product.
from on Apr 10th 2016
Great product and very fast delivery. Absolute pig to fit thanks to vauxhall but a little adaption of Allan key and perciferene it's on ha
from on Nov 7th 2015
Brilliant item, abit of a pain to fit due to vauxhall but we'll worth buying A*

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Compatible Vehicles

Click the triangles to find your car make and model. Note that the models listed here have either had the part fitted by us or a customer or they are listed as being compatible on industry parts databases. Where it has not been directly fitted by Forge there will then be a separate May Also Fit tab where the make and model will also appear and which details our no-risk approach to purchasing this product, so it is worth checking there as well.

If you need further assistance, please call us on +44 1452 380999 or email us.



Vauxhall Astra, Corsa, Zafira and Bentley Recirculation Valve


Warranty Infomation

The majority of Forge Motorsport products come with a limited lifetime warranty (brakes pads excluded). All warranty claims must be accompanied by the original proof of purchase to enable us to help you. Failure to supply this proof will result in your claim or enquiry being denied.

For further information, please call our customer service team on +44(0)1452 380999 or email

Do not use aggressive (acidic) car cleaning products, particularly traffic film remover solutions or shampoos to clean your intercooler, radiator, or oil cooler. The use of these products can damage Forge Motorsport cooling systems and invalidate your warranty. These are often found at car washes. A light, warm, soapy solution (free of harsh acidic cleaning compounds) should be used to clean you cooler and thoroughly rinsed away. We recommend that you should inspect your product on a regular basis for bent and/or crushed fins. Any bent fins should be carefully straightened to allow ambient air to pass through the core face. At the time of installing your Forge radiator, an approved coolant must be used and added to the coolant system. Be sure you never mix coolant and always use distilled water.

This warranty does not apply to any defect in the goods arising from fair wear and tear, wilful damage, accident, negligence by you or any third party, use otherwise than as recommended by the supplier, failure to follow the supplier’s instructions, or any alteration or repair carried out without the supplier’s approval.



UK Mainland

Next day delivery applies to orders processed before 12 noon Monday to Friday, subject to stock availability and geographical restrictions. 'Next day' refers to next working day. We cannot guarantee next day delivery for orders placed after this time. Whilst we endeavour to honour our next day service, next day delivery cannot be guaranteed due to other extenuating circumstances. Full details

Delivery is free of charge for all orders £100 (ex VAT) or over. Products are sent by standard DPD service which is usually a next day service, but can take 2 days in transit. We reserve the right to ship smaller, lower value items via Royal Mail or any other service. (Not including Scottish Highlands, Scottish Isles, Northern Ireland, Guernsey, Jersey, and Isle of Man where charges will vary). 

Europe and Worldwide

Delivery service charges will vary depending on the quantity of product ordered, the related parcel size, and destination postcode. Live shipping rates will be calculated at checkout using ShippyPro and dependent on criteria, you will be given the option of DHL, DPD, or FedEx courier services.

Shipping into the EU - Duty Charge Information

All Forge products are sold with a Delivery Duty Unpaid (DDU) status and an import tariff may apply to your order. Customers will be contacted by the Customs and Excise authority in the destination country regarding payment prior to delivery, and it is important that correct contact telephone number and email information be submitted with the order to facilitate this part of the delivery process. Some couriers are charging an admin fee for shipping into the EU. 

If we detect at checkout that you are located within the European Union (EU), you are eligible for a contribution towards your import duty and tax payments. We can add an additional 20% on the total cost of your order, we will then pay the duty and tax costs above your contribution. This offer will ensure the price you pay at checkout is the total you pay, with no additional charges. It will also ensure you have the fastest possible delivery, with no delays. For more information, please see here

Our shipping methods ensure safe and timely delivery of your new Forge products. For further information on cost and delivery times, please contact Forge using the email address if you require any more information. We reserve the right to change the delivery service and company at any time.

Forge Motorsport ships via either UPS, FedEx, DHL (primarily for outside of UK), DPD (primarily for UK), or any other courier we chose. Other shipping options may be available for an additional fee over and above the actual shipping costs. Once a product has left our warehouse and is in the possession of the shipping company, any claims must be made directly with that shipper however we can assist with most cases.

Expert Answers

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Will this work for the astra k 1.4t ?? If not what one would you recommend??

hello , im sorry we do not do a valve for the astra K 

Answered 1 month, 3 weeks ago

Which spring will I need for a astra h 1.6t running stock

Hi Fraser, thank you for your question.


Running stock you will need the green spring which comes in the valve as standard.

Answered 2 months, 1 week ago

Which orientation is the valve installed in?

There is a machined flat on one edge of the valve which lines up with the discharge for on the valve, both if which must be lined up with the discharge port within the turbo compressor housing.

Answered 3 months, 3 weeks ago

Will this fit corsa d vxr Nurburgring? Registration is SK63 AWW?

Hello , yes this will fit 

Answered 4 months, 2 weeks ago

I this compatible with Corsa e OPC/VXR 1.6 Turbo (2016)?


thank you for your message, yes this will fit your vehicle. 

Answered 4 months, 1 week ago

I have a vauxhall astra h gtc with a z16let motor can i buy this for the astra? En how installed on my car

Yes this is compatible with your vehicle and is a direct replacement for your valve. 

Answered 7 months, 3 weeks ago

Hello, which spring kit is suitable for this valve (FMDVK04D) please? Is it possible to have the pressure of each spring (by colour)

The correct spring tuning kit for the valve with part number FMDVK04D is product code  FMTVTUN and I have included the spring pressure information below.

Green –   up to 10psi (supplied off the shelf with this spring installed).

Yellow – 11psi to 16psi (supplied loose with each valve sale).

Blue    -  17psi to 22psi.

Red    -  23psi to 27 psi.

Answered 8 months, 2 weeks ago