Dual Piston Blow Off/Dump Valve
SKU: 37645800304

Dual Piston Blow Off/Dump Valve

Sale price$97.19 Regular price$107.99
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Dual Piston Blow Off/Dump ValveSuitable for most turbo cars with an Air Flow Meter. Made from billet aluminium, this atmospheric diverter valve dumps the charge air to atmosphere creating the "Whoosh" sound when the throttle is lifted. This increases both quicker throttle response and higher clamping load to maintain boost pressure more reliably. Unlike single piston or diaphragm diverter valves, this uses counter balanced springs and dual pistons to prevent the valve from leaking

Suitable for most turbo cars with an Air Flow Meter. 

Made from billet aluminium, this atmospheric diverter valve dumps the charge-air to atmosphere creating the "Whoosh" sound when the throttle is lifted. This increases both quicker throttle response and higher clamping load to maintain boost pressure more reliably. Unlike single piston or diaphragm diverter valves, this uses counter balanced springs and dual pistons to prevent the valve from leaking air into the intake system at idle. This prevents our diverter valves suffering any of the failures associated with single piston and diaphragm type diverter valves.

All Forge Motorsport Dual-Piston Atmospheric Valves have been designed and built with the intent of venting 100% of the residual charge air remaining in your forced induction system to the atmosphere at throttle lift. While we have incorporated many elements into the design of the Dual-Piston valves to aid in their compatibility with mass air-flow sensor equipped vehicles, we cannot always guarantee that each individual’s application will be compatible with a valve that vents the charge air into the atmosphere.

Forge Motorsport nor any of it’s Authorised Distributors can assume any responsibility for any adverse effects resulting from the installation of this valve onto a vehicle whose engine-management-system, whether factory or aftermarket, is not capable of compensating for the loss of metered air through a vent-to-atmosphere valve such as this.

 

In The Box:
1 x FMDV004 Valve
1 x Forge Sticker

If you wish to tune this product to fit the needs of your engine, please see the spring tuning kits below.

The valve has a port size of 25mm

We recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner

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: 37645800304

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Omaha, US
★★★★★ 4
Clear protection with easy installation
Model: iPad 9th/8th/7th Gen 10.2 Inch, Model: iPad 9th/8th/7th Gen 10.2 Inch
The ProCase screen protectors fit my iPad 7th generation well and provide clear protection without affecting touch sensitivity or screen clarity. The installation process was very simple, Unfortunately I did have some trouble with bubbles forming in the corner after applying the first one, which was a bit difficult to fully smooth out. The second protector went on slightly better, but it still required extra effort to get a perfect finish. Despite that issue, the screen protector still does its job well in protecting against scratches and daily wear. It also comes in a 2 pack, which adds good value in case one is applied incorrectly. It’s a solid product for protection, but the installation can be a little tricky if you want a completely flawless, bubble free look
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Houston, US
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Model: iPad A16 11th 2025 /10th 2022
Perfect, really easy to apply as well. Looks great and fits perfectly. I also noticed there not much glare
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Reviewed in the United States on May 29, 2026
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Bonnie Mobilio
Whiting, US
★★★★★ 5
Great product and reasonably priced!
Model: iPad A16 11th 2025 /10th 2022
Reasonably priced! Well packaged and protected! Very easy to install and I love it!
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Reviewed in the United States on June 7, 2026
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Daniel Alvarez
Boise, US
★★★★★ 5
Apple is number one
Style: Wi-Fi, Size: 128GB, Color: Blue, Configuration: Without AppleCare+
The best iPad it’s worth the money it works perfectly fine I think the battery life is fine, but it probably needs a little bit of work, I would choose Apple anytime of the week. The durability is perfect and everything and the gameplay is absolute amazing. this is also for personal use and probably college use. I’m probably going to use this for college as well.
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Alexandria, US
★★★★★ 5
Great purchase for everyday tasks
Style: Wi-Fi, Size: 128GB, Color: Blue, Configuration: Without AppleCare+, Style: Wi-Fi, Size: 128GB, Color: Blue, Configuration: Without AppleCare+
Good product, brand new condition works as it should, feels sturdy, perfectly fine for watching content and gameplay. Battery lssts basically all day. Easy setup Color kind of shifts depending on lighting. Friendly advice, get a screen protector with a notch or pinhole cutout so your front mic isn't obstructed :).
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