Forge Motorsport
Forge Motorsport Ford Fiesta Mk8 ST & Puma ST Dump Valve
Forge Motorsport Ford Fiesta Mk8 ST & Puma ST Dump Valve
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Shipping and Returns
Shipping and Returns
- With popular products we will always aim to hold stock to ensure rapid delivery times across the UK.
- With less commonly ordered products we rely on drop shipping from our suppliers, this can occasionally result in delays in delivery times.
- Where a product is required urgently please contact us first before placing your order so we can check stock and delivery times to ensure no disappointment.
- Once an order is placed we aim to be in touch within 24 hours with either your delivery details or estimated time of delivery for your products.
- Need to return an item? No problem, get in touch and we can explain the next steps.
Price Match
Price Match
Seen it cheaper elsewhere? Get in touch with where and how much and we'll not only do our best to match it, where possible we aim to beat it!
Product Queries
Product Queries
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Does this fit my car?
Does this fit my car?
This product is compatible with the following models and year ranges:
Product Description
Please contact us about current stock and availability on this item. Especially for time sensitive projects!
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.
Similar to our early days 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.
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.
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
- 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)
