Forge Motorsport Ford Fiesta Mk8 ST & Puma ST Dump Valve

Product Description

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) 

Compatible Vehicles

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.

Warranty Information

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.

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.

We keep a large inventory of stock at our warehouse however due to widespread delays in the industry, some items may be on backorder. If you need parts ASAP then please contact us on the live chat or at support@wayside-performance.co.uk and a member of our team will get back to you.

Unsure on fitment? Just drop us a message on the live chat or support@wayside-performance.co.uk and a member of our team will assist. Please make sure to include as much detail as possible including make, model, registration and the parts you are looking at.