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MAGNAFUELPART NUMBER: 665-MP-9940

ProStar EFI 4-Port Regulator

Name: ProStar EFI 4-Port Regulator
Brand: MAGNAFUEL
SKU: 665-MP-9940
Price: 261.99 USD
Availability: InStock

^$261⁹⁹

Ships on 11/12/2026

Lowest Price Guarantee

ProStar EFI 4-Port Regulators

Up to 2000 HP
35 to 85 psi
(4) -8 AN Inlets
(1) -8 AN Outlet
Classic Blue/Performance Purple Finish

Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Provides Precise, Accurate Control with Less Maintenance

MagnaFuel EFI Regulators provide the most stable platform for fuel delivery available on the market today. They maintain steady fuel flow during times of sudden changes in fuel demand, such as initial launch, gear change and nitrous oxide application. MagnaFuel Regulators are compatible with racing gasoline and alcohol fuels while also being completely rebuildable and user-serviceable. These EFI Regulators and fittings are machined from aircraft quality aluminum and feature an anodized finish for superior durability.

Features:

Designed for use with MagnaFuel EFI gear pumps
Compatible with alcohol and gasoline racing fuel
The most stable platform for fuel delivery
Maintains steady flow even when fuel demands change suddenly
2 or 4-port configuration
Anodized, machined billet aluminum
Double reverse-wound springs
Nitrile-infused fabric diaphragm
Each regulator has 1/8 in. NPT gauge port, standard filtered vent fitting, or boost reference fitting
Boost Reference models have 1:1 compensation ratio

Part TypeFuel Pressure Regulator

Product LineMagnaFuel EFI Regulators & Fittings

BrandMAGNAFUEL

Package Height3.3

Package Width5.3

Package Length5.9

Weight0.98 PG

Part CategoryPerformance Parts

Regulator FinishPurple anodized

Inlet Size-8 AN O-ring

Boost/Vacuum Rise Ratio1:01

Regulator MaterialAluminum

QuantitySold individually

Boost/Vacuum Reference PortYes

RebuildableYes

Inlet AttachmentFemale Threads

Mounting Bracket IncludedYes

Gauge PortYes

Return Fitting Size-8 AN O-ring

Regulator LocationInline

Fittings IncludedNo

Inlet QuantityFour

Pressure Range (Psi)35-85

Part FitmentUniversal

Regulator StyleReturn

Return AttachmentFemale Threads

Vendor Part NumberMP-9940

Package Qty1

^$29⁹⁹$32.99

You Save$3.00

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