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Description
GFB FX-S Fuel Pressure Regulator 8050GO 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 1000psiFX R 300 Teflon co polymer seat with 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
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 1000psiFX R 300
Teflon co-polymer seat with 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 OUR 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-R.
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-R also 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:
- 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
4.3 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 4
ALMOST perfect.
Color: Vivid Orange
Item is as advertised. Durable, and the tools are useful for more than just regular plugs. It comes with the snips which was great as well as actual valve stem replacements which I thought were pretty nice. Only complaint are the plug strips themselves. If the hole is from a bolt or something larger than the average screw, it may take two of them to completely stop the leak. Hope this helped.
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Awesome Product.
Style: Boxed Type - 16 PCs
Awesome product. Very easy to use repaired my tire with no issues. It’s a very compact kit. Great price. The plug has proved to be durable as I’ve been driving the car with no leaks or issues.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Very handy tool
Style: Boxed Type - 16 PCs
Great tool. Worked perfectly and has a nice small case for easy storage . This came fast and was exactly as described
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Reviewed in the United States on April 5, 2026
★★★★★ 5
Very good product
Style: Boxed Type - 16 PCs
I let my wife fix a tire with, she is a tiny little femine girl, had no trouble, little hard pushing the plug thru but managed, fuxed no leaks, very good product, and heavy duty not a limsy like plastic thin
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Reviewed in the United States on April 18, 2026
★★★★★ 4
Quality
Style: Boxed Type - 16 PCs
Seems to be good quality. Haven’t used yet and hope I don’t need too.
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Reviewed in the United States on March 20, 2026