SKU: 85790790330

Ford Fiesta Mk8 ST & Puma ST Dump Valve

Sale price$137.22 Regular price$152.47
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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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Description

Ford Fiesta Mk8 ST & Puma ST Dump ValveAfter 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

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) 

Complimentary Products

The FMINDK38

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 85790790330

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KINDLE
Whiting, US
★★★★★ 4
Great product
Color: Black, Size: Medium
Love it. Fit is great. The only issue is pilling
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
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brooke arnold
Massapequa, US
★★★★★ 1
not as pictured
Color: Light Grey, Size: Small
This is very boxy and looks nothing like the photo. Sad
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Reviewed in the United States on December 4, 2025
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Peter Amato
Whiting, US
★★★★★ 5
A Must buy
Color: Beige, Size: Medium
For the price, can’t beat it! Comfortable, stylish and so soft!
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Reviewed in the United States on January 10, 2026
K
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Kate
Draper, US
★★★★★ 3
not very crop
Color: Black, Size: X-Large
longer than pictured, but comfortable so far.
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Reviewed in the United States on January 30, 2026
C
CrystalLea
Lowell, US
★★★★★ 5
Comfortable and light!
Color: Brown, Size: Large
Wanted something that was going to be lightweight but had those longer sleeves because I do still get a tad chilly even on the warmer days. This is perfect, the fabric is lightweight and breathable, the loose cut around the waist adds to the top's "breathability," but it still keeps you cozy and warm on those chilly mornings! The brown is a lovely warm-coffee tone and it hasn't faded a bit in the wash. Very nice shirt to add to your collection!
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Reviewed in the United States on April 14, 2026

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