We recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner
This is a piston design bypass valve that is a direct replacement for the original fitment. This valve gives greater longevity than the diaphragm (OEM) valves but also benefits from its ability to be fitted with different springs when the boost pressure has been increased or the engine has been modified.
Please note that if your vehicle has the valve show in Figure 1 then this valve will fit your application, however the valve shown in figure 2 will not be compatible with the Forge valve. We have seen this change on vehicles that are produced post 2016 so please make sure to check before you purchase your Forge valve.
*To avoid the possibility of a P0101 trouble code, the ECM must be reprogrammed with a tune optimised for atmospheric discharge.
In The Box:
1 x FMDVCS14A Valve
1 x Uprated Yellow Spring
1 x Forge Sticker
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.
Blow Off Valve for Ford Focus RS MK3 & Vauxhall Adam, Astra, Corsa, and more
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 email@example.com.
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.
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 firstname.lastname@example.org 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.
Hi guys! does this blow off valve will fit my Opel Adam S 1.4T 110kw? MY 2016? Greetz Davy
Yes this product is compatible with your vehicle.
Answered 1 month, 3 weeks ago
Would this fit a 2013 black edition corsa D
thank you for your question, yes this will fit as long as your vehicle has the 1.4 turbo engine
Answered 3 months, 2 weeks ago
Hi there, can this be used on a 2018 Ford Focus ST250?
I am afraid this product is not compatible with your vehicle.
Answered 5 months, 2 weeks ago
Hi there is this compatible with 2013 Astra gtc 1.6 turbo
Thank you for your enquiry, I'm afraid this will not fit that vehicle
Answered 9 months, 1 week ago
IT WORKS ON OPEL ASTRA GTC 1.4T?
Hello, thank you for your question, yes this valve will fit your vehicle.
Answered 10 months ago
I have a 2013 Vauxhall corsa 1.4t with a forge atmospheric dump valve . I need a service kit for it but I can’t select it on its own .
Hello. You can head to the link for our service kits and select FMDVCS14A on the drop down menu: https://www.forgemotorsport.co.uk/Forge_Motorsport_Valve_Service_Kit--product--792.html
Answered 10 months, 1 week ago