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 Aug 16 - Aug 21

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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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Reviewed in the United States on June 24, 2025
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Dave Roberts
Los Angeles, US
★★★★★ 5
Well worth the price.
Great fit and quality feel.
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Kathy- Phoenix
Grantham, US
★★★★★ 5
Quality shirt
Color: Angel Falls, Size: XX-Large
Great quality fabric , style, and fit. My husband loves the fabric and colors. Ordered his normal xl but too tight across his stomach so returned and sized up , and fits much better. Even sizing up the shoulders hang nicely . He likes so much ordered two colors, both great.
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Reviewed in the United States on May 10, 2026
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Angel
Omaha, US
★★★★★ 5
Very nice
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MLA
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★★★★★ 4
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