Made in USA
Terminator X Stealth 4150 Dual Throttle Body (2 x 4) EFI System [Black Finish]
Product Discontinued
HOLLEYPART NUMBER: 510-550-1075

Terminator X Stealth 4150 Dual Throttle Body (2 x 4) EFI System [Black Finish]

Currently Unavailable

This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

Terminator X Stealth 4150 Dual Throttle Body (2 x 4) EFI Systems
Terminator X Stealth 4150 Dual Throttle Body (2 x 4) EFI System
  • Replaces Carburetors on Dual 4150 Carburetor Manifolds
  • Supports up to 1500 HP
  • (8) 100 lbs./hr. Injectors
  • Internal MAP Sensor
  • Self-Learning ECU
  • Color Touchscreen
  • Black

    Holley 550-1075 Terminator X Stealth 4150 Dual Throttle Body EFI System Features:

    • Convert dual 4150 flanged manifolds from carburetors to EFI throttle bodies
    • Supports up to 1500 horsepower naturally aspirated and 1250 HP forced induction
    • (4) 100 lbs./hr. @ 58.5 PSI fuel injectors in each throttle body
    • Engine control unit (ECU) self-learns fuel maps and supports distributor, ignition box, and crank trigger with easy-to-use calibration wizard
    • High-resolution color touchscreen to be used for setup, tuning, and even gauges
    • Bosch LSU 4.9 wideband O2 sensor with included weld-in bung enables MAP to learn
    • Black finish
    • Plug and play capability with Holley's EFI Pro Dash 12.300 in. or EFI Pro Dash 6.86 in., as well as EFI 8-Channel CAN EGT Controller, and Analog-Style Gauges and Components when using their EFI Gauge Module

    Notes:

    • Gasoline use only
    • Use of leaded race fuels may shorten the service life of the WBO2 sensor

    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

  • Part TypeFuel Injection System
    BrandHOLLEY
    Package Height9.9
    Package Width14.9
    Package Length26.7
    Weight21.5 PG
    Part CategoryPerformance Parts
    Wiring Harness IncludedYes
    Fuel Pump IncludedNo
    Venturi Quantity2x4
    Throttle Body FinishBlack
    Throttle Body IncludedYes
    Fuel Pressure Regulator IncludedNo
    QuantitySold as a Kit
    Injectors IncludedYes
    Tps Sensor IncludedYes
    User TunableYes
    Engine Make/SizeUniversal
    Self TuningYes
    Ecm IncludedYes
    Calibration Module IncludedYes
    Oxygen Sensor IncludedYes
    Injector Size (Lbs./Hr.)100
    Throttle Body Mounting Flange4150
    Timing Control CompatibleYes
    Injection StyleThrottle body
    Part FitmentSemi Universal
    Map Sensor IncludedYes
    Vendor Part Number550-1075
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

    Items You Need

    12.3 in. Pro Dash Full-Color Touchscreen EFI Display 200-Plus Channels

    HOLLEY

    12.3 in. Pro Dash Full-Color Touchscreen EFI Display 200-Plus Channels

    Part Number : 510-553-111
    $1,86895$2199.95
    You Save$331.00
    7 in. EFI Digital Dash Full-Color Touch Screen 800x480 Weatherproof

    HOLLEY

    7 in. EFI Digital Dash Full-Color Touch Screen 800x480 Weatherproof

    Part Number : 510-553-106
    $82195$967.95
    You Save$146.00
    Fuel Line

    HOLLEY

    Fuel Line

    Part Number : 510-34-42
    $19195
    In-Line Tunnel Ram Linkage Kit Made in the USA

    JEGS

    In-Line Tunnel Ram Linkage Kit Made in the USA

    Part Number : 555-15790
    $2499$26.99
    You Save$2.00
    558-323 HyperSpark Ignition Adapter Harness

    HOLLEY

    558-323 HyperSpark Ignition Adapter Harness

    Part Number : 510-558-323
    $4995
    556-151 Sniper EFI HyperSpark Ignition Box

    HOLLEY

    556-151 Sniper EFI HyperSpark Ignition Box

    Part Number : 510-556-151
    $41595
    556-152 Sniper EFI HyperSpark Ignition Coil [Black]

    HOLLEY

    556-152 Sniper EFI HyperSpark Ignition Coil [Black]

    Part Number : 510-556-152
    $6525
    12-3000-2 VR2 Brushless Fuel Pump

    HOLLEY

    12-3000-2 VR2 Brushless Fuel Pump

    Part Number : 510-12-3000-2
    $3,44995
    12-886 EFI Fuel Pressure Regulator

    HOLLEY

    12-886 EFI Fuel Pressure Regulator

    Part Number : 510-12-886
    $10395
    Fuel Pressure Gauge 1 1/2 in. Diameter [Liquid Filled]

    JEGS

    Fuel Pressure Gauge 1 1/2 in. Diameter [Liquid Filled]

    Part Number : 555-41533
    $2999$32.39
    You Save$2.40
    Fuel Pressure Gauge 1 1/2 in. Diameter [Liquid Filled]

    JEGS

    Fuel Pressure Gauge 1 1/2 in. Diameter [Liquid Filled]

    Part Number : 555-41543
    $2999$32.39
    You Save$2.40
    AN Port Adapter Fitting [-10 AN Port (7/8 in.-14 Thread) to -10 AN Hose]

    JEGS

    AN Port Adapter Fitting [-10 AN Port (7/8 in.-14 Thread) to -10 AN Hose]

    Part Number : 555-110167
    $1289$14.99
    You Save$2.10
    Pro-Flo 200 Series Stainless Steel Braided Hose -10 AN [20 ft.]

    JEGS

    Pro-Flo 200 Series Stainless Steel Braided Hose -10 AN [20 ft.]

    Part Number : 555-100934
    $11999$129.59
    You Save$9.60
    AN 90-Degree Push-Loc Hose End [-10 AN Female Swivel to Push-Loc Hose, Black]

    JEGS

    AN 90-Degree Push-Loc Hose End [-10 AN Female Swivel to Push-Loc Hose, Black]

    Part Number : 555-110073
    $1399$15.09
    You Save$1.10
    AN Hose & Fitting Assembly Kit

    JEGS

    AN Hose & Fitting Assembly Kit

    Part Number : 555-28010
    $758$9.99
    You Save$2.41

    REPLACEMENT PARTS

    Some parts are not legal for use in California or other states with similar laws / regulations
    p65 warning
    Your Cart

    Your shopping cart is empty!