SKU: 64371015195

Twin Piston Blow Off Valve with Side Vacuum Nipple

Sale price$113.83 Regular price$126.48
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Twin Piston Blow Off Valve with Side Vacuum NippleWe recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner This version of our popular FMDV004 valve has the vacuum connection on the side of the valve which is ideal for those applications where space is restricted. 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

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

This version of our popular FMDV004 valve has the vacuum connection on the side of the valve which is ideal for those applications where space is restricted. 

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.

Fitment Guide: Suitable for most turbo cars with an Air Flow Meter. Dual-Piston Atmospheric Valves and Valve Fitting Kits

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 FMDV004A Valve
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.

The valve has a port size of 25mm

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: 64371015195

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 702 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
F
Verified Purchase
Fabian Medina
Lexington, US
★★★★★ 5
Todo perfecto 10/10
Todo muy bien 10/10 exelente.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
T
Verified Purchase
Toy4u
Whiting, US
★★★★★ 5
N54 engine — it fit absolutely perfectly.
N54 engine — it fit absolutely perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
M
Verified Purchase
M. L.
Carnegie, US
★★★★★ 5
Works well
This works as a fancy oil cap remover. I wish my oil cap looked this nice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2025
M
Verified Purchase
mark trumble
Boise, US
★★★★★ 3
Well built
Well made product. I have an volvo xc60 and it fits the oil filter housing perfectly but because of its thickness, there's some interference with the heat shield or it could be part of the skid plate assembly that is next to the filter housing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2025
J
Verified Purchase
James M.
Lake Worth, US
★★★★★ 5
Fast delivery and good quality part
Good quality snug fit. Works as should. Only issue I had was whe tightening oil cap back on the 18 ft-lb torque made this part slip. I used material to get a better grip and torqued slow but it still slip before the torque gauge read 18.5 No leaks! So it’s all good 😊
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026

recommand products