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- USA
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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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
4.1 ★★★★★
Based on 2042 reviews
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Product Reviews
★★★★★ 5
Great tshirts!
Color: Light Gray, Dark Gray, Black, Size: X-Large
Husband loved these tshirts.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
★★★★★ 2
Not made from the most comfortable fabric
Color: White, Light Gray, Black, Size: Large
It is not the most comfortable fabric which makes it not suitable for summer clothing. Also, the fitting of the neck doesn’t look good since material is not wrinkle free
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Reviewed in the United States on August 4, 2025
★★★★★ 4
Excellent Mock Neck T-Shirts
Color: Wine Red, Navy Blue, Black, Size: Medium
As a man who appreciates comfort and style, I can confidently say these August Alley mock neck t-shirts are a solid choice. I'm always looking for versatile basics, and these fit the bill perfectly.
The cotton material feels great against the skin, and they've held their shape well after a few washes. I appreciate the slim fit; it looks modern without being too tight. Whether I'm wearing them casually or layering them under a jacket, they always look sharp.
For the price, getting a 3-pack of these quality shirts is a fantastic deal. Highly recommend them for any guy looking to upgrade his basic tee collection.
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Reviewed in the United States on June 24, 2025
★★★★★ 5
Well worth the price.
Great fit and quality feel.
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Reviewed in the United States on November 3, 2025
★★★★★ 5
Men’s mock golf shirt
Color: Lake Green, White, Black, Size: XX-Large
Fit & quality very good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
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