SKU: 69542686940

Boost Compensating Universal EFI Fuel Pressure Regulator - 512-504-5

Sale price$202.47 Regular price$224.97
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

Boost Compensating Universal EFI Fuel Pressure Regulator - 512-504-5Overview: This precision adjustable fuel metering regulator is the ultimate fuel pressure control unit designed to work on all naturally aspirated EFI, turbo and supercharged applications like vehicles that run in the Pro Street, Pro Import and Outlaw classes. This is a 2 port 1: 1 boost compensating return style regulator that is adjustable from 15 65 PSI + boost reference and is designed to be used in conjunction with any electric EFI fuel pump.

Overview:

This precision adjustable fuel metering regulator is the ultimate fuel pressure control unit designed to work on all naturally aspirated EFI, turbo and supercharged applications like vehicles that run in the Pro Street, Pro Import and Outlaw classes. This is a 2 port 1:1 boost compensating return style regulator that is adjustable from 15-65 PSI + boost reference and is designed to be used in conjunction with any electric EFI fuel pump. Features built in gauge port, mounting bracket, two AN -8 O-ring fittings and a AN-6 O-ring return fitting. Black anodized.

Features:

  • Black anodized
  • Easy installation
  • -8an & -6an o-ring style fittings included to adapt to steel braided fuel lines
  • Designed to regulate high fuel demands for naturally aspirated EFI, turbo, supercharged and nos race applications
  • Engineered to regulate extreme flow volumes generated by racing fuel systems
  • CNC machined billet aluminum
  • Allows adjustment from 15-65 psi + boost reference

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Brand Holley
Color Hard Coat Anodized
Emission Code 4
Fuel System Gasoline
Fuel Type Gasoline
Inlet Size 8 AN O-Ring
Material Aluminum
Outlet Size 8 AN O-Ring
Pressure Range 15-65 PSI
Product Type Fuel Pressure Regulator
Return Size 6 AN O-Ring
Style Bypass
Warning California Proposition 65
Warranty Limited 90 Day
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
  • 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
SKU: 69542686940

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4.2 ★★★★★
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Elsie
Houston, US
★★★★★ 5
Worth it and easy to use
Color: Gold, Color: Gold
It’s very easy to assemble and set up. Like the marble look and delicate pieces. I can use it for multiple occasions.
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Reviewed in the United States on March 10, 2026
W
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WCR
Bozeman, US
★★★★★ 5
Just an ABSOLUTELY PERFECT Bar Cart!
Style: Grey Oak, Size: 14.17"D x 37.01"W x 35.24"H
Completely blown away with this cart! It FAR exceeded my expectations! A little more expensive than similar items, but the reviews sold me on it! Approximately 45 minutes to assemble from unboxing. Really good instructions. Tools included. I put together lots of these Lego Projects, so I can get through pretty quickly. This is a HEAVY, STURDY, SOLID, WELL MADE piece! All of the metal and wood surfaces are smooth and clean! Its much sturdier than it looks in the ad pics. It's also a little larger than I expected, even though I did measure it all out before ordering. I had ZERO problems building this thing. It's beautiful. Lines and surfaces are my base motif, and this fits the bill perfectly! Im not a big fan of the handle but I did go ahead and install. This cart fits seemlessly in with other furniture materials and fabrics. Can be tucked neatly into a tight space, or in my case ... is anchoring its own spot under some artwork somewhat solo along a large wall. You absolutely get your money's worth with this one. An absolute score with Two Thumbs Up!
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Reviewed in the United States on December 31, 2025
W
Verified Purchase
Wesley
Dallas, US
★★★★★ 5
Beautiful!!!
Absolutely INCREDIBLE!!!! Easy to assemble and beautiful once set up!!! Plenty of room!!!!
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Reviewed in the United States on April 25, 2026
T
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Two and Dog
Draper, US
★★★★★ 5
Good quality wine cart.
Very sturdy bar cart and well made. Product came well packaged, with good instructions and even some extra screws. It is helpful to have 2 people putting it together. The only downside is the wine rack will not hold fatter bottles of wine but I added a small wine rack to the top.
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Reviewed in the United States on May 6, 2026
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Verified Purchase
Amazon Customer Connie
Lake Worth, US
★★★★★ 4
Very nice cart.
The cart is very functional and relatively easy to put together. I was also provided a great tip on the assembly that made it much easier.
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Reviewed in the United States on April 30, 2026

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