Brand: Forge Motorsport

Atmospheric Dump Valve for the Ford Fiesta 1.0 EcoBoost

Product code: FMDV4
Was: $185.00 now: $92.50

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Product Description

Forge Motorsport have developed an additional valve for the Ford Fiesta 1.0 Ecoboost. This is a twin piston blow-off valve. Under boost the valve has a clean crisp sound that will definitely get you noticed.

Machined from Billet aluminum the FMDV4 valve is completely tunable and serviceable to keep up with any other modifications as they progress. Installation is simple with full illustrated instructions.

All Forge Motorsport Dual-Piston Atmospheric Valves have been designed and built with the intent of venting 100% of the residual charge air remaining in your forced induction system to the atmosphere at throttle lift.

This valve comes with the Forge Motorsport "No Hassle" warranty.

Please note that due to the position of the air flow sensor on the 1.0 Ecoboost engines this valve may on occasion cause the EML (Engine Management Light) to illuminate. This does not have a detrimental effect on the engine and will disappear when the ignition is switched off and on again. 

The valve was tested under a range of conditions in stock and mapped models where EML was only induced under heavy load, extraordinary to normal road driving conditions. Given that hard driving is quite often outside the parameters of legal road usage we of course do not recommend driving in a fashion that might induce EML mode.

If you have any questions in this regard please call our sales team who will be happy discuss safe use of the product.



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 Aug 30th 2016
Great product, easy install, I highly recommend! Also great customer service!!

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Warranty Infomation

All Forge Motorsport products come with a limited lifetime warranty. 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.



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