


NEUSPEED 5-Bar Fuel Pressure Regulator • 1.8T A4/Passat B5
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
NEUSPEED 5-Bar Fuel Pressure Regulator • 1.8T A4/Passat B5If you have a 1 bar or higher chip in your 1997 99 A4 1. 8T or 1998 99 Passat 1. 8T, our 5 bar fuel pressure regulator will give you the extra fuel delivery you need for high RPM load operation. We modify a new regulator to increase the line pressure. Recommended for vehicles that see sustained high speed high RPM conditions. Fits: Audi A4 S4 RS4 B5 (1996 2001) A4 1. 8T FWD Audi A4 S4 RS4 B5 (1996 2001) A4 1. 8T quattro Volkswagen Passat B5 (1996
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- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.2 ★★★★★
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Product Reviews
★★★★★ 1
Some of the components are plastic
This is not a heavy duty application what so ever . One of the flanges broke . We do not recommend this product
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Reviewed in the United States on July 5, 2024
★★★★★ 2
Quality control lacking
One tee conector was missing. Nothing avaliable locally that fits.
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Reviewed in the United States on July 13, 2025
★★★★★ 1
It doesn’t stay in
The pipe keeps coming out. Not worth the money. Not sturdy to hold a top table.
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Reviewed in the United States on February 20, 2024
★★★★★ 2
Good finish, poor hardware.
Set screws are poor quality and are sometimes powdercoated on the exposed threads. Leads to striped hex sockets and inability to tighten properly.
Durable finish as evidenced by no visible damage after throwing parts across the shop in frustration.
Ended up running self tapping screws thru parts to complete assembly.
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Reviewed in the United States on February 26, 2024
★★★★★ 1
Kinda flimsy…
Thought the assembly was metal, it’s some kind of PVC.
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Reviewed in the United States on September 22, 2025