SKU: 16466294925

Subaru Impreza 34mm Piston Ram Dump Valve

Sale price$113.74 Regular price$126.38
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Description

Subaru Impreza 34mm Piston Ram Dump ValveWe recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner Alloy Atmospheric Ram Dump Valve available to fit the Impreza V4. Made from billet aluminium, this atmospheric diverter valve dumps the charge air to atmosphere creating the "Whoosh" sound most commonly associated with rally cars when the throttle is lifted. This increases both quicker throttle response and higher clamping load to maintain boost pressure more

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

Alloy Atmospheric Ram Dump Valve available to fit the Impreza V4. Made from billet aluminium, this atmospheric diverter valve dumps the charge-air to atmosphere creating the "Whoosh" sound most commonly associated with rally cars when the throttle is lifted. This increases both quicker throttle response and higher clamping load to maintain boost pressure more reliably. Dual-Piston Atmospheric Valves and Valve Fitting Kits.

This valve has a base port 34mm in diameter

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 FMDVV4010 Valve
1 x 34mm Blanking Plug
1 x Forge Sticker

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

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • 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]
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SKU: 16466294925

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Alyssa
Grantham, US
★★★★★ 5
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Number of Items: 6
Game changer when making sublimation mugs or pressing shirts. Will always keep this in hand
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Reviewed in the United States on May 30, 2026
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Jeremy B
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★★★★★ 4
Tape small
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The tape rollers are much smaller than expected 2 in circles with little tape. WTf moment
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Reviewed in the United States on May 2, 2026
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Yvonne Marie Stogsdill
Lake Worth, US
★★★★★ 5
Must have
Number of Items: 2
This heat tape works beautifully, really holds the shirt in place.. It's a definite must have for your heat press
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Reviewed in the United States on April 12, 2026
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Denise
Louisville, US
★★★★★ 5
Sublimation tape that works.
Number of Items: 2
Very strong and sticky tape. Great to use for sublimation on tumblers. No residual left on tumblers. Holds amazing. Stretch is just enough to help you get things nice and tight.
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Reviewed in the United States on February 15, 2026
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Alicia
Port Orchard, US
★★★★★ 5
Recommend
Size: 4x9.5inch
First, the sizing is absolutely perfect for these projects. Instead of wasting large sheets and having to cut them down, these pre-cut sizes save a ton of time and effort — and most importantly, reduce paper waste. The quality of A-Sub paper has always been excellent: it holds vibrant colors beautifully, releases ink consistently, and produces crisp, sharp designs. Both of these sizes continue that tradition. I’ve noticed my images transfer smoothly and evenly every time, whether I'm working on ceramic mugs or glass tumblers. In terms of value, these smaller sheets are definitely worth the price. You get professional-quality results without using more paper than you need, which in the long run saves money and materials. Overall, I highly recommend these A-Sub sublimation papers for anyone looking to streamline their mug and tumbler production. They’re efficient, reliable, and a great investment for any sublimation business or hobbyist. - send me stuff to review.
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Reviewed in the United States on June 28, 2025

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