Dump valve Ford Fiesta Mk8 ST & Puma ST

FORGE MOTORSPORT
Reference: FO-FMDV35.N
Supplier Ref.: FMDV35

Color

Price: €318.00 Tax included
In stock
Available in store (Montpellier)
Shipped today from our warehouse
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Carbon footprint: 15.6 kg CO₂

After huge demand, Forge have developed the perfect dump valve solution for the Fiesta ST MK8 and Ford Puma ST, two vehicles that Ford launched without an OEM valve included.

When Ford released the RS turbo Escort, Forge developed and lead dump valve technology to give the Escort owners the same technology as Cosworth did for the Sierra - with loud whooshes and prolonged turbocharger life, this really is one the favourite modifications for the Ford enthusiasts must have bolt on products.

As the engine does not have a diverter valve fitted as standard, Forge have developed a twin piston dump valve that not only gives you an incredibly loud sound when lifting off the throttle, but also increases the throttle response during gear changes by reducing turbo lag. It has been designed to help the turbocharger maintain its rotational speed ready for when you accelerate, whilst also taking the strain away from the impeller. Without removing this stress from your turbo, it could cause premature failure, especially on tuned engines and modified vehicles.
Our dump valve kit comes with two different rates of springs to accommodate for stock as well as stage 1 boost settings. We also have additional stage two and above springs available to order through our website depending on your vehicles engines modifications, including hybrid turbo conversions.

In The Box:
1 x FMDV35 Valve with Yellow Spring
1 x 0.5m of 4mm Vacuum Tube
1 x Vacuum Tap
3 x Hose Clamps
1 x Billet Coupler
5 x Cable Ties
1 x Uprated Blue Spring
1 x Bespoke Silicone Hose

Features :

The Forge Motorsport solution includes all the necessary hardware and step by step instructions for any enthusiast with appropriate garage tools to fit at home within a couple of hours.
CNC machined billet couplers and components
CNC machined twin piston Forge valve
The Forge silicone hoses in this kit have been designed to include an expensive inner liner of modified silicone known as Fluorosilicone. This means the hoses are suitable to be used with either modern long-life coolants, Organic Acid Technology coolants (O.A.T.) or air containing oil mist. The construction of the hoses has been engineered to exceed that of the OEM fitments, and will enhance any engine bay both technically and aesthetically
Lifetime warranty
Forge valve will not bring on any check engine lights (EML)

Vehicle affectation :

Ford Fiesta Mk8 1.5 ST
Ford Puma ST

5/5

Based on 5 reviews subject to a control

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5/5 Verified review

Très bon produit, de qualité, emballage impeccable et la livraison à été assez rapide, il y a des tutos intéressants pour le montage. La dumpvalve est efficace et cela change considérablement le bruit de décharge, à recommander pour celui qui veut soulager son turbo et avoir ce son de décharge. La qualité forge est au rendez-vous.

Published on 01/09/2026 by BERTRAND B

5/5 Verified review

Kit de très bonnes qualités et livraison très rapide

Published on 24/08/2026 by Eric S

5/5 Verified review

perfetto

Published on 10/11/2025 by Giuseppe M

5/5 Verified review

Très satisfait, tout fonctionne nickel.

Published on 20/02/2025 by D R

5/5 Verified review

Produit conforme a la photo et très bonne qualité du produit.

Published on 22/08/2024 by a a

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