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Holley Bypass Fuel Pressure Regulator Kits

Holley bypass fuel pressure regulator kits are part of a complete line of fuel system products from Holley. Offering several different kits, each features a billet or diecast aluminum regulator with an adjustable psi for precise fuel pressure changes and they are finished for corrosion resistance and good looks. The regulators are fitted with a 1/8 in. NPT gauge port and include an Earl's fuel pressure gauge, three adapter fittings, a barbed fitting for the vacuum port, a mounting bracket, and all necessary hardware. Choose the kit to best fit your project's needs and performance.

3.62 out of 5 stars ( 26 )

$140.95

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$166.95

Aeromotive Universal Bypass Regulators

Aeromotive universal bypass fuel pressure regulators are dual purpose—for use with fuel systems in street or track applications. They feature adjustable base pressure and are ideal for vehicles/systems where superior flow and pressure control are desired. The regulators are available in different styles and pressure ranges, and for fuels such as gasoline, diesel, and flex.

4.72 out of 5 stars ( 182 )

$174.99

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$191.11

Aeromotive A1000 Gen-II EFI Fuel Pressure Regulators

Aeromotive A1000 Gen-II EFI fuel pressure regulators feature excellent control, superb durability, and a high-flow design suited for medium to high-horsepower powerplants. These units have been downsized and lightened up, and yet remain as incredible as ever. They're compatible with alcohol or gasoline, have a 1/8 in. NPT gauge port, and are available in either -6, -8, or -10 AN inlets with a -6 return. Keep your vehicle's engine roaring with Aeromotive A1000 Gen-II EFI fuel pressure regulators.

5.0 out of 5 stars ( 6 )

$243.94

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$247.35

Aeromotive Compact EFI Fuel Regulators

Aeromotive offers compact EFI regulators for applications producing up to 1,000 hp, where space is at a premium. Their compact design fits small engine compartments while providing big performance. They ideally work with EFI systems where only one inlet is needed.

4.96 out of 5 stars ( 24 )

$181.99

Holley HP Billet Fuel Pressure Regulators

Part of Holley's complete line of fuel system products, Holley HP billet fuel pressure regulators are available in a variety of configurations for carbureted or fuel injected engines. Some versions are even adaptable to either carburetors or EFI. They allow you to upgrade a carbureted system to EFI without replacing the fuel pressure regulator. All HP billet fuel pressure regulators feature a 2-port design, provide for precise fuel pressure adjustments, and are available in your choice of demand (no return line) or by-pass (with a return line) styles. Depending on the model, they are for use only with electric fuel pumps, or with either mechanical or electric pumps. Designed for street/strip applications, they are CNC-machined from 6061 T-6 billet aluminum for strength and have bright dip anodized black bodies with clear dip anodized tops for corrosion resistance and good looks. Whatever your fuel system needs, Holley has you covered. Depending on model, features may include: * Adjustable from 4 to 65 psi for use with EFI or carburetors * 4.5 to 9 psi adjustment range for use with carburetors only * EFI-only models are adjustable from 15 to 65 psi * Two port sizes available, 3/8 in. NPT or -6 AN inlet/outlet and return (where applicable) * Fitting for manifold reference * 1/8 in. NPT gauge port * Boost reference--1:1

3.93 out of 5 stars ( 161 )

$152.95

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$224.95

MagnaFuel Carbureted Racing Fuel Pressure Control Units

Unlike many fuel pressure regulators that allow pressure to drop during sudden changes in fuel demand, MagnaFuel carbureted racing fuel pressure control units supply high performance engines with a steady diet of fuel. They feature exclusive pressure control units that control pressure drop during initial launch, gear change, or nitrous activation. They're available in 2 or 4-port configurations with 1/8 in. NPT pressure ports.

4.64 out of 5 stars ( 45 )

$208.99

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$223.99

Aeromotive A1000 Carbureted Bypass Fuel Pressure Regulators

These A1000 carbureted bypass regulators from Aeromotive allow you to convert from fuel injection to carburetion by using your EFI fuel pump. They deliver consistent volume at perfect pressure, right to your carburetor. They feature adjustable base fuel pressure and are perfect for any application, from the street to the track, naturally aspirated or supercharged. Their bypass design provides the ultimate dynamic fuel delivery system.

5.0 out of 5 stars ( 20 )

$209.99

Aeromotive A1000 Injected Bypass Fuel Pressure Regulators

Intended for use with custom fuel rails, Aeromotive A1000 injected bypass fuel pressure regulators feature a design specifically for use with their A1000 fuel pumps. These true billet, alcohol-compatible regulators have a beautiful finish in anodized red and black or a mirror-like, show-quality nickel!

4.54 out of 5 stars ( 13 )

$209.10

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$211.50

Turbosmart OPR V2 Oil Pressure Regulators

Turbosmart OPR V2 turbocharger oil pressure regulators provide rock solid oil pressure from a simple, inline return-less regulator that includes a serviceable and replaceable built-in 44-micron stainless steel mesh oil filter, which provides another layer of defense against debris in your engine oil damaging your turbocharger. The OPR V2s achieve target oil pressure through Turbosmart's patent pending flow control strategy, delivering a laminar flow of oil to your turbocharger, no matter the base engine oil pressure or temperature. Suitable for all known engine oils, the OPR V2s will down regulate any oil pressure to ensure the critical balances inside your turbocharger (exhaust drive, back, and charge pressures) are not compromised by over-pressurized engine oil causing consumption of oil and smoking. They eliminate trial and error with restrictors and orifice sizes, or the need to fit and plumb a return line to regulate pressure. Additional features: * Aluminum (6262 T-6) anodized body and valve * Output regulated oil pressure suits most turbochargers * Stainless steel (304) mesh oil filter * -4 AN inlet and outlet * 1/8 in. NPT sensor/gauge port * Directional inlet feed logic

4.67 out of 5 stars ( 3 )

$138.46

Holley Adjustable Fuel Injection Regulators

Holley adjustable fuel injection regulators are able to provide all of the fuel pressure that your high performance, fuel injected vehicle will require. They utilize a special wave spring to maintain constant fuel pressure. Some models are universal fit, while others are designed for specific vehicle applications. The regulators are available for inline or fuel rail mount, with various psi ranges. Select the adjustable unit tailored to your driving needs.

3.96 out of 5 stars ( 45 )

$101.95

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$204.95

Aeromotive Carbureted Adjustable Fuel Pressure Regulators

Aeromotive carbureted adjustable fuel pressure regulators are excellent upgrades from the popular standard 2-port designs. These regulators re-seat after the needle shuts down, preventing pressure creep. They're ideal for carburetor and dedicated nitrous applications where higher flow, quicker response, and less pressure creep are desired. A mounting bracket is included. The units are available with different inlet/outlet options, as well as pressure ranges.

4.63 out of 5 stars ( 73 )

$141.30

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$145.35

Longacre Digital Tire Pressure Gauges

Longacre Racing digital tire pressure gauges are highly accurate and easy to read. They have a battery indicator on display, an auto-off feature that can be adjusted to save the battery, a bleed valve, and an external gauge bumper. Longacre tire gauges are available in a variety of psi ranges, hose lengths, and other options. When exact tire pressure matters, trust the reliability and lighted digital readouts of your Longacre instrument.

4.65 out of 5 stars ( 96 )

$126.99

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$156.99

MagnaFuel EFI Fuel Pressure Control Units

MagnaFuel EFI fuel pressure control units feature a unique guided-metering valve assembly to provide a more accurate metering of fuel flow and help reduce the pressure drop that can occur at high or sudden changes in fuel demand. The pressure control units are designed to work with the EFI 600 pump and are available in two sizes--large for applications of up to 2,000+ hp and standard for applications of up to 700 hp. Each of these units has a 1/8 in. NPT pressure port for a gauge, a filtered vent fitting or optional boost reference fitting, and is compatible with racing gasoline and alcohol. The units feature a CNC-machined, aircraft-quality aluminum body and are hand-assembled and flow-tested for maximum performance.

4.85 out of 5 stars ( 26 )

$179.99

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$223.99

Weldon A2040 Series Bypass Regulators

Weldon A2040 Series bypass fuel pressure regulators will exceed your performance expectations. They maintain a steady fuel delivery during dramatic changes in fuel demand, such as WOT conditions, boost application, and gear changes with precision pressure control. A2040 Series regulators are for use with all Weldon pumps, as well as pumps from other manufacturers. Features include: * .281 in. bypass orifice * Fluorosilicone diaphragm * Flows up to 6 gpm * 1/8 in. NPT gauge port * 1/8 in. NPT manifold pressure reference port * Fuel pressure increases on a 1:1 ratio with boost * Two -10 AN pressure ports/-8 AN return port * Billet aircraft aluminum with Mil-Spec anodizing * Compatible with gasoline, methanol, diesel, ethanol, most racing fuels

4.5 out of 5 stars ( 2 )

$225.19

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$241.01

MagnaFuel Carbureted Fuel Pressure Regulators

MagnaFuel carbureted fuel pressure regulators feature a unique cartridge design that provides the most stable platform for fuel delivery in the performance industry. They feature a durable metal-to-metal seat for instantaneous response and low maintenance. Two and four-port configurations are available. The boost-reference models provide a 1:1 compensation ratio. They're suitable for drag racing, Circle Track, road racing, mud bog, power boat, and tractor pulling. These regulators offer adjustable base pressure and precise pressure control. MagnaFuel carbureted fuel pressure regulators are machined from billet aircraft aluminum and are anodized for a long-lasting finish.

4.57 out of 5 stars ( 7 )

$149.99

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$189.99

Radium Engineering Direct Mount Fuel Pressure Regulators

The Radium Engineering Direct Mount Regulator (DMR) is a compact high performance adjustable EFI fuel pressure regulator designed with a unique highly versatile mounting system. It can be mounted directly to a compatible fuel rail port using the included 360 degree swiveling adapter, or mounted remotely away from the fuel rail. The compact size fits in areas with limited space without sacrificing performance. This regulator is safe to use with all gasoline and ethanol blends of fuel. The main inlet port on the regulator is female threaded for 6 AN ORB. A swiveling double-ended adapter is included with the kit that allows the regulator to be used in any compatible 8 AN ORB fuel rail port, such as those found on Radium Engineering fuel rails. The return port on the bottom is threaded for 6 AN ORB. The provided 90-degree 6 AN male fuel return fitting can swivel 360 degrees, permitting a multitude of mounting configurations. Other adapter fittings can be installed in the return port if needed (sold separately). Unlike the previous generation, this DMR has two 1/8 in. NPT side port locations that can be used with a pressure gauge, transducer, temperature probe, etc. Two 1/8 in. NPT plugs are provided. Fuel pressure is dialed in using the preloaded set screw on top of the regulator. Two interchangeable orifices are included with calculated flow diameters to match the fuel pump flow to the regulator. This permits the DMR to be used with practically any horsepower engine. This added precision will resist diaphragm flutter and optimize pressure stability. This design has been tested to regulate over 1,200 liters per hour. What's included: * Fuel Pressure Regulator (black or green anodized top) * Swiveling inlet adapter fitting (for 8 AN ORB fuel rail) * PTFE impregnated 1/8 in. NPT plugs (x2) * 6 AN male swivel (for return line) * Return orifices (silver orifice pre-installed)

5.0 out of 5 stars ( 1 )

$170.95

DeatschWerks Fuel Pressure Regulators

DeatschWerks fuel pressure regulators provide the quality, precision, and reliability that your high performance fuel system requires to deliver optimum performance. DW adjustable regulators come in 1,000 and 2,000 hp models, with both featuring dual AN inlets, single bottom mounted AN returns, and semi-compact 60mm footprints for maximum installation flexibility. They utilize stainless steel hardware, nitrile fiber diaphragms, anodized housings, and 100 percent brass-free construction to be compatible with ethanol and methanol. The design of the DeatschWerks fuel pressure regulators will also allow for precision pressure adjustment via their ball-bearing mechanism, combined with a 2 psi-per-turn pressure ratio that makes dialing-in your desired target easy.

5.0 out of 5 stars ( 8 )

$139.00

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$239.00

Holley Replacement Pressure Transducers

Help your fuel injection system keep up on measured pressures with these Holley replacement pressure transducers. They include a wiring pigtail, are available for all Holley EFI fuel injection systems, and come in different pressure ranges to suit your engine application requirements.

4.33 out of 5 stars ( 48 )

$152.95

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$217.95

Holley EFI Filter Regulators

When converting your fuel system to a return-style EFI setup, the biggest challenge can be plumbing the fuel lines. Holley has found a way to make this job easier! They offer EFI filter regulator assemblies to simplify your installation—by combining the fuel filter and regulator in one unit that can be mounted in the rear of the vehicle. Mounting in the rear means less line to run for a return and less mess. These regulators feature a 175 gph, 10 micron fuel filter built-in. The regulators are preset at 59.5 psi. They're available with 3/8 in. NPT or -8 AN port sizes to match most common EFI fuel systems. Simplify your EFI conversion, or clean up the plumbing on your current EFI system, by installing a Holley EFI filter regulator. (Diecast EFI fuel regulators are also available by Holley.)

3.7 out of 5 stars ( 23 )

$186.95

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$237.95

Holley EFI Billet Bypass Fuel Pressure Regulator KIts

Holley EFI universal bypass fuel pressure regulators are for use with fuel systems in street or track applications. They feature adjustable base pressure from 15-90 psi, a gauge port, and a boost reference port, as well. The regulators are ideal for vehicles/systems where superior flow and pressure control are desired. These regulators are precision-machined from 6061-T6 billet aluminum for strength and durability—and feature a black bright dip anodized body and a clear bright dip anodized top for corrosion resistance and good looks. Choose from models with -6 AN or -8 AN inlet/outlet port sizes. * Kits include a Holley fuel pressure gauge * Regulator features an 1/8 in. NPT gauge port and 1/8 in. NPT boost reference port (barbed fitting included) * Mounting bracket and fittings included

Not Yet Reviewed

$232.95

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$241.95

FUELAB 535 Series Mini Fuel Pressure Regulators

FUELAB 535 Series mini fuel pressure regulators offer all of the great benefits of the 515 Series regulators, but are smaller and 50 percent lighter! They accept port style and non-port style union fittings without interference. Several configurations are available, supporting fuel injection applications from 10 to 125 psi. The regulators are compatible with gasoline, diesel, methanol, and ethanol; and feature billet aluminum construction, in your choice of anodized finishes for maximum protection. FUELAB 535 Series mini fuel pressure regulators use a fine thread pitch for precise pressure adjustment. Units include a 1/8 in. NPT port and plug for an external pressure gauge; and a versatile mounting bracket with stainless steel hardware is provided.

4.6 out of 5 stars ( 10 )

$159.84

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$205.00

Aeromotive A1000-6 Injected Bypass Regulators

Aeromotive A1000-6 injected bypass regulators were developed for high-horsepower EFI applications where -6 AN fuel lines are used for supply and return. These regulators are alcohol compatible and feature two -6 AN inlet ports and one -6 AN return port. They're beautifully finished with Type II bright red and clear anodized coatings and deliver long life, performance, and reliable operation.

4.89 out of 5 stars ( 18 )

$209.95

Aeromotive Ford Fuel Pressure Regulators

Aeromotive offers true billet fuel pressure regulators designed to meet the performance requirements of Ford engines. Their Ford fuel pressure regulators feature a stainless steel spring, custom-designed to provide the regulation required by Ford's 4.6 and 5.0L engines.

4.26 out of 5 stars ( 47 )

$210.74

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$231.08

Edelbrock Fuel Pressure Regulators

Edelbrock fuel pressure regulators are machined from aircraft-quality aluminum for those who demand the best. These regulators feature fluorosilicone diaphragm material for extended life and high-temperature protection. They are compatible with all grades of gasoline/methanol.

4.08 out of 5 stars ( 60 )

$149.95

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$238.95

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