SKU: 69417496004

GBE Fuel Cut Defencer - FCD Mechanical - MK2

Sale price$26.95 Regular price$29.95
Save 10%

Pay in installments of $7.49 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 20 - Sep 25

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

GBE Fuel Cut Defencer - FCD Mechanical - MK2This is What an FCD is: An FCD is a small device, which essentially acts as a me chanical air pressure switch. A small ball bearing within the valve is held, under pressure, onto a seat by a spring. Air pressure acting on the ball causes it to lift off its seat once a preset pressure has been reached, as determined by the spring pressure on the ball which can be adjusted of course. Once the ball has lifted off its seat air can flow through the valve.

This is What an FCD is:
An FCD is a small device, which essentially acts as a me chanical air pressure switch. A small ball bearing within the valve is held, under pressure, onto a seat by a spring. Air pressure acting on the ball causes it to lift off its seat once a preset pressure has been reached, as determined by the spring pressure on the ball – which can be adjusted of course. Once the ball has lifted off its seat air can flow through the valve. As the air pressure acting on the ball reduces below the spring pressure, the valve closes preventing air flowing through the valve. In essence no air passes through the valve until the spring or ‘cracking’ pressure has been reached.


For this application, this means that the ECU (Engine control Unit or Engine management unit) sees only up to the pressure you set the valve to. This means that if your standard ECU had a factory set “boost cut” at 14.7psi (very common), then adjusting this valve to suit will mean that at any pressure above, say, 14.5psi, the ECU will only ever see 14.5psi as the valve will “leak” air off any air above that pressure.


The advantage with the GBE FCD is that UP TO THE PRESET PRESSURE, the ECU sees the correct reading, so you are unlikely to have detonation in the part throttle or low boost ranges. This can ONLY be a good thing!

Fitting Instructions are HERE

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: 69417496004

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 10 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Craig Randall
Waukegan, US
★★★★★ 3
Cheap plastic parts -- good fit
They are what they are: Cheap plastic parts. They fit, but long-term durability will be a challenge. Probably will buy from FCP Euro going forward (and just did for a fuel line replacement).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2024
R
Verified Purchase
ruben rodriguez
Los Angeles, US
★★★★★ 5
2001 325i
Great quality fits perfect durable. no more leaks works great. Great price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2024
F
Verified Purchase
Farrin Johnson
Phoenix, US
★★★★★ 1
Does not connect
First the hoses do not connect together causing all kinds of vacuum leaks. There is no rifling in the diaphragm so oil leaks back up. Cheap piece of plastic
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2022
M
Verified Purchase
Miguel Quezada
Port Orchard, US
★★★★★ 5
Great price
Great product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
A
Verified Purchase
Alan C
Grantham, US
★★★★★ 5
Give me a try I don’t think it’ll let you down
This has to be the best oil I ever used. I noticed the difference as soon as I put the oil in and started the engine.! I will continue to use this oil for as long as I own, the vehicle and any future cars I may own or drive! I read 75% of the reviews before purchasing this oil . The only thing I’ve noticed. Anyone who gave it below a five star was because they received used motor oil.. in my opinion I think it was returned after somebody filled it up with their used motor oil and returning it for their money back somehow Amazon put it back on the shelf for resale. So take it for what it’s worth but it’s really great oil.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026

recommand products