Nitro-Port 750 HP DBW EFI System for LS Cathedral Port [Cast Short Intake, Black 102mm TB, No Pedal]
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FITECH FUEL INJECTIONPART NUMBER: 546-73105DBWBBNP

Nitro-Port 750 HP DBW EFI System for LS Cathedral Port [Cast Short Intake, Black 102mm TB, No Pedal]

$1,89899
ShippingShips on 11/23/2026
Lowest PriceLowest Price Guarantee

Drive-By-Wire Multi-Port EFI System
  • Gen III/IV LS Cathedral Port Heads
  • 750 HP Rated
  • Cast Short Cathedral Intake
  • 102mm Black Billet DBW Throttle Body
  • (8) 55 lb/hr Injectors
  • Dual Wideband O2 Sensors
  • No Pedal Included
  • Sold as a Kit

    The FiTech 73105DBWBBNP Nitro-Port EFI system is a complete multi-port fuel injection package for LS engines with LS1/LS2/LS6 cathedral port cylinder heads. It combines a cast short cathedral intake manifold, fuel rails, injectors, a self-learning ECU, wiring and sensors with a 102mm drive-by-wire throttle body and electronic throttle control, so no throttle cable or linkage is needed. The kit is aimed at LS swaps and new LS builds making up to 750 HP.

    FiTech 73105DBWBBNP Features:

    • Cast Short Cathedral Intake manifold cast from aluminum with -8 AN fuel rails and pre-drilled nitrous/water injection bungs.
    • 102mm black billet drive-by-wire throttle body with drive-by-wire controller; no throttle cables, brackets or linkage required.
    • Eight 55 lb/hr fuel injectors sized for engines up to 750 HP.
    • Self-learning ECU with handheld touchscreen controller for setup and monitoring.
    • Dual wideband oxygen sensors and a 3 Bar MAP sensor for boost applications up to 27 PSI.
    • Transmission control is not included with this system.
    • Drive-by-wire pedal assembly is not included and is sourced separately.
    • A fuel pump is not included; the system requires a fuel supply capable of 58 PSI.
    • Sold as a kit.
  • Part TypeFuel Injection System
    BrandFITECH FUEL INJECTION
    Package Height10.0
    Package Width16.0
    Package Length28.0
    Weight35.0 PG
    Part CategoryPerformance Parts
    Fuel Pump IncludedNo
    Throttle Body FinishBlack
    Intake MaterialAluminum
    Handheld IncludedYes
    Venturi Diameter (Mm)102 mm
    Map Sensor Range (Bar)3 bar
    Throttle Body IncludedYes
    Injector Quantity8
    QuantityKit
    Cylinder Head TypeCathedral Port
    Maximum Horsepower750 HP
    Intake Manifold IncludedYes
    Ecm IncludedYes
    Oxygen Sensor IncludedYes
    Injector Size (Lbs./Hr.)55 lbs./hr.
    Transmission ControlNo
    Self-LearningYes
    Injection StyleMulti-Port
    Part FitmentSemi Universal
    Throttle Body MaterialBillet Aluminum
    Vendor Part Number73105DBWBBNP
    Package Qty1
    Package TypeEA
    Some parts are not legal for use in California or other states with similar laws / regulations
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