Nitro-Port 1000 HP DBW EFI System w/Trans Control for LS Cathedral Port [Cast Short Intake, Brilliant 102mm TB, No Pedal]
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FITECH FUEL INJECTIONPART NUMBER: 546-73108DBWSBNP

Nitro-Port 1000 HP DBW EFI System w/Trans Control for LS Cathedral Port [Cast Short Intake, Brilliant 102mm TB, No Pedal]

$2,19899
ShippingShips on 11/23/2026
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DBW Multi-Port EFI System
  • Gen III/IV LS Cathedral Port Heads
  • 1000 HP Rated
  • Cast Short Cathedral Intake
  • 102mm Brilliant Billet DBW Throttle Body
  • (8) 80 lb/hr Injectors
  • 4L60/65/80/85 Trans Control
  • No Pedal Included
  • Sold as a Kit

    The FiTech 73108DBWSBNP 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 1000 HP, and the ECU also manages GM 4L60, 4L65, 4L80 and 4L85 electronic automatic transmissions.

    Key Features of the FiTech 73108DBWSBNP:

    • Cast Short Cathedral Intake manifold cast from aluminum with -8 AN fuel rails and pre-drilled nitrous/water injection bungs.
    • 102mm brilliant billet drive-by-wire throttle body with drive-by-wire controller; no throttle cables, brackets or linkage required.
    • Eight 80 lb/hr fuel injectors sized for engines up to 1000 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 for GM 4L60/4L65/4L80/4L85 electronic automatic transmissions.
    • 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 FinishBrilliant
    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 Horsepower1000 HP
    Intake Manifold IncludedYes
    Ecm IncludedYes
    Oxygen Sensor IncludedYes
    Injector Size (Lbs./Hr.)80 lbs./hr.
    Transmission ControlYes
    Self-LearningYes
    Injection StyleMulti-Port
    Part FitmentSemi Universal
    Throttle Body MaterialBillet Aluminum
    Vendor Part Number73108DBWSBNP
    Package Qty1
    Package TypeEA
    Some parts are not legal for use in California or other states with similar laws / regulations
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