SKU: 59133332791

GFB FX-S Fuel Pressure Regulator 1/8” NPT

Sale price$90.29 Regular price$100.32
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Ships within 48 hours · Estimated delivery Sep 11 - Sep 16

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Description

GFB FX-S Fuel Pressure Regulator 1/8” NPTGO FAST BITS FX SERIES EFI FUEL PRESSURE REGULATORS FEATURE: 1: 1 fuel pressure rise rate Double layer double reinforced diaphragms with a burst strength exceeding 1000psi Teflon co polymer seat with a stainless valve to retain fuel pressure longer after shut down Spring pre load adjustment screw is o ring sealed and does not leak vacuum boost Static pressures adjustable from 28psi to 72psi Completely serviceable Multiple body ports allow for a large

GO FAST BITS FX SERIES EFI FUEL PRESSURE REGULATORS FEATURE:

  • 1:1 fuel pressure rise rate

  • Double layer/double reinforced diaphragms with a burst strength exceeding 1000psi

  • Teflon co-polymer seat with a stainless valve to retain fuel pressure longer after shut down

  • Spring pre-load adjustment screw is o-ring sealed and does not leak vacuum/boost

  • Static pressures adjustable from 28psi to 72psi

  • Completely serviceable

  • Multiple body ports allow for a large variety of setup options

  • Features 4x 1/8” NPT ports which can be used for any combination of fuel inlet/s or pressure gauge/ECU sensor, and 1x 1/8” NPT return port 

GO FAST BITS FX SERIES EFI FUEL PRESSURE REGULATORS JOIN OUR EXISTING LINE OF SUCCESSFUL PRODUCTS, BUILT WITH THE SAME PRECISION, MACHINING QUALITY, AND RELIABILITY THAT IS THE FOUNDATION OF GFB’S REPUTATION.

From the 800Hp FX-S Street to the 1500Hp FX-R Race version, and whether you run pump petrol/gasoline, Ethanol, Methanol or Diesel, we have you covered no matter what your Fuel Pressure Regulator requirements are.

What sets us apart from the competition? Well, if you’re looking for an EFI Fuel Pressure Regulator that seals and behaves just like your factory unit but with the added reliability and high flowing capacity you require, then look no further than the FX-S.

How have we achieved this? Our engineers have spent countless hours developing a unique replaceable co-polymer valve seat. 

What does this mean? Conventional aftermarket performance Fuel Pressure Regulators typically utilize a metal-to-metal valve and seat which by nature will not
positively hold pressure when your engine is shut down, which can make startup more difficult.

Here at Go Fast Bits, we have incorporated a softer, more compliant yet resilient material for the valve seat, which will always positively seal and hold fuel pressure on shut down, designed to give factory-like sealing and reliable startup, as well as superior fuel resistance suitable for Unleaded, Ethanol, Methanol, and Diesel fuels.

We also use a double layer diaphragm, which means we have twice the reinforcing material, and as a result the burst strength exceeds 1000psi!

The FX-S offers multiple fuel inlet and gauge ports that allow for a wide range of fuel system setups beyond the usual inlet/outlet, including parallel fuel rail or returnless “deadhead” systems. The two gauge ports allow you to run a mechanical fuel pressure gauge AND an ECU fuel
pressure sensor if you want to.

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: 59133332791

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Matt & Kristin
Lexington, US
★★★★★ 5
Favorite childhood book
Format: Board book, Format: Board book
The Rainbow Fish was my absolute favorite book when I was little, so I had to get it for my kids too. The sparkly scales are still just as magical as I remembered and honestly make the whole book feel special. The story is sweet, the illustrations are beautiful, and it’s one of those classic children’s books that actually sticks with you growing up. Reading it now feels really nostalgic for me, and my kids love looking at all the shiny pages. Such a cute book to have in your collection.
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Reviewed in the United States on May 9, 2026
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Kindle Customer
Fort Morgan, US
★★★★★ 5
Great Book for 8 month old!
Format: Board book
This book is extremely high quality and was in great condition upon arrival. Our daughter loves this book. Its well written, and it has an actual plot for her to follow. I love that the book isn't overstimulating colors, it has a well balanced color profile.
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Reviewed in the United States on May 20, 2026
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Dallas, US
★★★★★ 5
Great for young readers!
Format: Board book
Very cute book, just the way I remember it, with thick pages for easy grabbing. The colors are vibrant and the shiny scales are shimmery! Package arrived on time and just as described.
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Reviewed in the United States on May 9, 2026
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Susan Y.
Lexington, US
★★★★★ 5
Adorable, sparkly little board book for youngsters!
Format: Board book
Quick book about sharing and friendship. Beautiful board book with sparkles on the fish. Including the cover, there are 6 pages to turn. I bought for the kids I babysit (age 11 months and age 4). Excellent little book for a child or teacher's library!
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Reviewed in the United States on May 18, 2026
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Kayla DesChane
San Leandro, US
★★★★★ 5
Came damaged due but great book
Format: Board book, Format: Board book
Came damaged and badly bent probably due to packaging but still usable. The book is great and fantastic nostalgic moments with our 1 year old.
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Reviewed in the United States on April 22, 2026

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