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Forge Motorsport Direct Fit Piston Recirculation Valve FMDVK04S for Buick Regal (2008 - 2017)
Forge Motorsport Direct Fit Piston Recirculation Valve FMDVK04S for Buick Regal (2008 - 2017)
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Forge Motorsport Direct Fit Piston Recirculation Valve FMDVK04S for Buick Regal (2008 - 2017)

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  • This is a piston design recirculation valve that is a direct replacement for the original fitment. This valve gives greater longevity than the diaphragm valves (OEM)but also benefits from its ability to be fitted with different springs when the boost pressure has been increased or the engine has been modified. To ease installation the top or vacuum connection is angled.
  • Please note for Porsche 997 Generation 1, x2 FMDVK04S's are required.
  • In The Box:
  • 1 x FMDVK04S Valve
  • 1 x Uprated Yellow Spring
  • 1 x Forge Sticker
  • If you wish to tune this product to fit the needs of your engine, please see the spring tuning kitbelow.
  • Please note: In certain car models the removal fo the O.E mounting bolts may be better facilitated by grinding down the short leg of the appropriate Allen key to 10mm long
Price £161.00 inc. VAT
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Make Buick
Model Regal
Year 2008 - 2017
Variant 2
Chassis Code Gen 5
Manufacturer FORGE MOTORSPORT
Manufacturer Part FMDVK04S
Larkspeed Code FMDVK04S
Product Information
Delivery & Returns
  • This is a piston design recirculation valve that is a direct replacement for the original fitment. This valve gives greater longevity than the diaphragm valves (OEM)but also benefits from its ability to be fitted with different springs when the boost pressure has been increased or the engine has been modified. To ease installation the top or vacuum connection is angled.
  • Please note for Porsche 997 Generation 1, x2 FMDVK04S's are required.
  • In The Box:
  • 1 x FMDVK04S Valve
  • 1 x Uprated Yellow Spring
  • 1 x Forge Sticker
  • If you wish to tune this product to fit the needs of your engine, please see the spring tuning kitbelow.
  • Please note: In certain car models the removal fo the O.E mounting bolts may be better facilitated by grinding down the short leg of the appropriate Allen key to 10mm long

SPECIAL OFFER - FREE SHIPPING on this item to all UK Mainland Addresses (Excludes Highlands, Islands and Northern Ireland.

This Forge Recirculating Dump Valve is designed as a direct replacement for the OEM valve which is prone to failure when the engine has been tuned or had an upgrade to the engine management software. This valve is complete and ready to install with no fitting kit required.

This valve is supplied assembled with a spring which is suitable for standard or mildly tuned engines. If your vehicle has been software tuned or is running higher boost levels please contact us to advise on the required spring fitment.

The easiest way to order from Larkspeed is via our secure online ordering system. We accept most major credit and debit cards except American Express. We also accept PayPal.

Please ensure that you provide us with a valid telephone number and email address so that we can contact you about your order if necessary. Please also ensure that you fill in your vehicle details so that we know what car you are ordering for.

Once an order has been placed successfully, you will receive an automated response via email. If you do not receive an automated email from our website, this could mean that your payment has not been successful – in if doubt, please contact us on sales@larkspeed.com or 0113 264 3231


Location Weight Price
UK Mainland Up to 2kg £5.95
UK Mainland Over 2kg £10

Mainland UK shipping does not cover Highlands and Islands and selected postal areas. The Postal Code areas listed below will in some cases incur extra postage charges.

AB31-38, AB40-56, All BT Postal Codes, All HS Postal Codes, All IM Postal Codes, IV1-28, IV30-32, IV36, IV40-49, IV51-56, IV63, KA27-28, KW1-17, PA20-38, PA41-49, PH4-44, PH49-50, All ZE Postal Codes, All Channel Islands and all Republic of Ireland addresses

For shipments up to 30kg

Location Price
Highlands/Islands/Selected Postal Areas £20
Andorra £55
Austria £45
Belgium £40
Channel Islands £35
Croatia £55
Czech Republic £55
Denmark £55
Estonia £55
Finland £55
France £40
Germany £50
Greece £55
Hungary £55
Ireland £30
Isle of Man £30
Italy £55
Latvia £55
Netherlands £50
Northern Ireland £30
Norway £75
Poland £70
Slovakia (Slovak Republic) £55
Slovenia £55
Spain £55
Sweden £45
Switzerland £65

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If you prefer, you can also order via telephone on 0113 264 3231

For customers outside of the UK, please dial +44 113 264 3231

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Customers outside of the UK can email orders to sales@larkspeed.com. When payment is required, we can email you a secure card payment link or a PayPal invoice.

Worldwide Shipping

We can ship virtually every item on our website to almost every part of the world. However, the website can not calculate shipping for all countries, particularly where we need to ship via Air (generally outside of Europe). If the website is not calculating shipping automatically for you, then please email us for a shipping quote on sales@larkspeed.com

Deducting VAT

Please note that we can remove the VAT for all customers outside of the EU, and also for customers within the EU with a valid EU VAT Number.

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