SKU: 63117993632

Dump Valve for Subaru Impreza and Forester 2001 Onwards

Sale price$107.99 Regular price$119.99
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 19 - Aug 24

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Description

Dump Valve for Subaru Impreza and Forester 2001 OnwardsHighlights: Made from billet aluminium for durability Hand polished in the UK for a sleek appearance Creates the iconic "Whoosh" sound associated with rally cars Improves throttle response Increases clamping load to maintain boost pressure reliably Designed, manufactured, and assembled in the UK Lifetime warranty An Alloy Atmospheric Dump Valve specifically designed to fit Subaru Impreza models from 2001 onwards, including the 2009 GR STi. This high

Highlights:

  • Made from billet aluminium for durability
  • Hand polished in the UK for a sleek appearance
  • Creates the iconic "Whoosh" sound associated with rally cars
  • Improves throttle response
  • Increases clamping load to maintain boost pressure reliably
  • Designed, manufactured, and assembled in the UK
  • Lifetime warranty

An Alloy Atmospheric Dump Valve specifically designed to fit Subaru Impreza models from 2001 onwards, including the 2009 GR STi. This high-quality valve is made from billet aluminium and hand polished in the UK to ensure durability and a sleek appearance. By installing this atmospheric diverter valve, you can experience the iconic "Whoosh" sound that is commonly heard in rally cars when the throttle is lifted. Not only does it add an exciting auditory experience, but it also improves throttle response and increases clamping load to maintain boost pressure more reliably.

⭐ I bought this product and got to say sounds really good nice blow off noise and looks very impressive when lift the bonnet great quality and service ⭐

In The Box:

1 x FMDVSUB01 Valve
1 x 34mm Blanking Plug
1 x Forge Sticker

If you want to customize this valve to better suit the needs of your engine, we offer a spring tuning kit that allows for easy adjustments. If you have any questions or are unsure if this product is suitable for your application, feel free to contact us for assistance. 

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: 63117993632

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4.5 ★★★★★
Based on 18 reviews
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Merrill Jordan
Pawtucket, US
★★★★★ 5
Very comfortable
Special Size: Two Pack, Size: XX-Large, Color: Black/Dark Blue
I like how they fit and feel and so for there is no shrinkage and would buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2025
D
Verified Purchase
DBerrrg
Massapequa, US
★★★★★ 5
Surprisingly good quality and cut.
Considering that this brand tends to be a bit hit-or-miss (mostly hit) I was apprehensive about the fit and sizing. These fit so well that I bought other colours and have no issue with the sleeve length (often cheaper brands have very short sleeves) nor with the length of the body of the shirt. They look great, the fabric quality is excellent, and the colours are compatible with a broad range of pants (you can't go past black pants, black jacket/blazer, and any colour of this underneath).
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Reviewed in the United States on May 20, 2025
J
Verified Purchase
John Carosella
Port Orchard, US
★★★★★ 5
Nice feel
Special Size: Two Pack, Size: Medium, Color: A-wine Red/Dark Grey
I’m 5’8”, trim and athletic build. The sleeves are a tiny bit tight and would be unpleasant on a warmer than expected day, but for a cool day just fine. Nice fit. Feels pleasant to the touch.
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Reviewed in the United States on March 5, 2026
A
Verified Purchase
amazon_tom
Alexandria, US
★★★★★ 4
Good fit, light weight, very comfortable
Special Size: Two Pack, Size: X-Large, Color: Black/Army Green
I've purchased several of these now and overall they seem like a decent buy for the price. They are very light weight and seem to retain their shape and avoid wrinkling when hung to dry after washing. Despite never seeing a clothes dryer however, the black variant still pilled up a bit after moderate use. There seems to be some variation in sizing: all the black and olive colored ones seem pretty consistent but the gray run small and the blue just a bit large (all purchased in XL, me at 6'3 and 225#)
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Reviewed in the United States on December 19, 2024
E
Verified Purchase
Erica
Boise, US
★★★★★ 5
Great with a great price
Special Size: Two Pack, Size: X-Large, Color: A-blue/Army Green
First off. I am female 5’10”. I thought the extra large fit great. The material is very soft and light. I think they’re warm though. I just washed them for the first time yesterday with dryer. Air dry. I’d like to see after a couple washes and know how the dryer affects it.
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Reviewed in the United States on December 10, 2025

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