SKU: 3971559334

GFB FX-S Bosch Fuel Pressure Regulator

Sale price$103.50 Regular price$115.00
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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

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Description

GFB FX-S Bosch Fuel Pressure RegulatorIf you increase the performance of your engine, you need to ensure your fuel system can deliver the goods or you're going to have a bad day! Upgrading the fuel pump is the first step, but doing this alone will usually result in excessive fuel pressure, especially at idle. This is because the factory Bosch regulators typically don't flow enough to support larger fuel pumps, especially with turbo E85 setups that demand high fuel flow rates.?, Rather

If you increase the performance of your engine, you need to ensure your fuel system can deliver the goods or you're going to have a bad day! Upgrading the fuel pump is the first step, but doing this alone will usually result in excessive fuel pressure, especially at idle. This is because the factory Bosch regulators typically don't flow enough to support larger fuel pumps, especially with turbo E85 setups that demand high fuel flow rates.?, Rather than replacing the entire fuel rail, or using an adaptor with a separate fuel pressure regulator, simply clipping in the FX-S 8051 will allow you to run a much larger pump setup even with the factory rail. And if you need to adjust the fuel pressure, that's no problem - unlike the fixed-pressure Bosch regulators, the FX-S can be adjusted from 1.4bar to 5bar. Like all GFB FX regulators, the FX-S 8051 is compatible with pump gas, Ethanol, or Methanol, and also incorporates a soft Teflon valve seat (rather than metal on metal) that will always positively seal and hold fuel pressure on shut down for reliable engine startups. The double layer diaphragm has twice the reinforcing material of the single layer type used in most regulators, and as a result the burst strength exceeds 1000psi!, The 1/8" NPT port can be used for a fuel pressure gauge or electronic pressure sensor, or it can simply be plugged using the port plug provided.
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
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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: 3971559334

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4.1 ★★★★★
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HD Rider
Bozeman, US
★★★★★ 5
Great product
Size: 4.5", Style: Open
Strong grip
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
R
Verified Purchase
Rob W.
Bozeman, US
★★★★★ 5
Works, good holding power
Size: 4.5", Style: Open
Arrived as scheduled just as pictured. Purchased to hold my yard shovels & tools ( metal building) holds my square nose shovels, D handle Shovels w/o slipping. Impressed & happy with performance, enough to order again. Very happy with purchase.
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Reviewed in the United States on April 28, 2026
C
Verified Purchase
CCombs
Dallas, US
★★★★★ 5
Perfect
Size: 4.5", Style: Open
These hooks are so functional and great for organization in the garage. Perfect for hanging extension cords and other misc items that you want to have easy access to. Super simple installation; lift the release and move then flip back down to lock again. Very sturdy and magnet is strong. Worth the buy!
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Reviewed in the United States on November 18, 2024
J
Verified Purchase
joshua
Massapequa, US
★★★★★ 5
Great for shed organizing
Size: 4.5", Style: Open, Size: 4.5", Style: Open
We recently upgraded to a conex/shipping container/metal shed and needed a way to organize all of our yard tools. These work great, the weight holds a lot of items, could be a little longer but we were impressed with them holding everything for over a month now and not moving.
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Reviewed in the United States on February 20, 2026
R
Verified Purchase
Rebecca
Bozeman, US
★★★★★ 5
Great! Worth the money
Size: 4.5", Style: Open
These things are amazing!!!! So strong you can hang a 20ft ladder and they don’t budge at all. Soooo easy to use especially in a metal building/shed
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Reviewed in the United States on December 10, 2025

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