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GFB FX-S Bosch Fuel Pressure Regulator

Marsoni M251S
Sale price$114.97
Pay 4 payments of $28.74 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
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.
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  • We offer a 30-day return/exchange service after receiving.
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4.4 ★★★★★
Based on 1243 reviews
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Poppy
Lowell, US
★★★★★ 5
Two thumbs up
Size: 1/0 Awg - 3/8" (M10) Ring, Number of Items: 4, Size: 1/0 Awg - 3/8" (M10) Ring, Number of Items: 4
Very nice battery lugs. They are not thin junk & they fit. I used a hydraulic crimper which gave me an excellent crimp. Well worth the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
R
Verified Purchase
REEK
Massapequa, US
★★★★★ 5
Works fine
Size: 6 Awg - 3/8" (M10) Ring, Number of Items: 10
Decent quality
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Reviewed in the United States on May 26, 2026
M
Verified Purchase
Manuel
Draper, US
★★★★★ 5
Item is worth every penny
Size: 4 Awg - 3/8" (M10) Ring, Number of Items: 10
Very well packaged and very good quality shrink tube super thick 😄 item is as prescribed 💯 Thank You
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Reviewed in the United States on April 25, 2026
T
Verified Purchase
The Diabolical F
Carnegie, US
★★★★★ 4
Good Terminals
Size: 8 Awg - 1/4" (M6) Ring, Number of Items: 10
Used to make radial wire sets for amateur radio. Good connectors with thick metal. Heat shrink is glue lined. Would purchase again.
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Reviewed in the United States on May 1, 2026
D
Verified Purchase
David
San Leandro, US
★★★★★ 5
Worth it
Size: 8,6,4,2,1,1/0,2/0, Number of Items: 264, Size: 8,6,4,2,1,1/0,2/0, Number of Items: 264
Does the job. Made a set of battery cables that look professionally manufactured using a hydraulic crimper. The heat shrink adds a nice touch.
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Reviewed in the United States on May 26, 2026

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