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ProStar EFI Large 2-Port Regulator
InfoVehicle Info Needed
MAGNAFUELPART NUMBER: 665-MP-9950-B

ProStar EFI Large 2-Port Regulator

$21599
ShippingShips on 11/12/2026
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$12100
Fuel Pressure Regulator for EFI Equipped Engines [30-100 psi Output Pressure, Black Anodized]

555-159120

Fuel Pressure Regulator for EFI Equipped Engines [30-100 psi Output Pressure, Black Anodized]

$9499

ProStar EFI Large 2-Port Regulators
    ProStar EFI Large 2-Port Regulator
  • Up to 2000 HP
  • 35 to 85 psi
  • 1:1 Boost Reference
  • (2) -8 AN Inlets
  • (1) -8 AN Outlet
  • Classic Blue/Performance Purple Finish

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.

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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 Height3.2
Package Width5.4
Package Length6.0
Weight1.05 PG
Part CategoryPerformance Parts
Regulator FinishBlue anodized
Inlet Size-8 AN
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
Regulator LocationInline
Fittings IncludedNo
Inlet QuantityTwo
Pressure Range (Psi)35-85
Part FitmentUniversal
Regulator StyleReturn
Return AttachmentFemale Threads
Vendor Part NumberMP-9950-B
Package Qty1
Package TypeEA
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