Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededHOLLEYPART NUMBER: 510-550-874
550-874 Super Sniper Stealth 4150 Self-Tuning Fuel Injection System
$1,69195
1 left in stock
Ships Tomorrow
Lowest Price GuaranteeSuper Sniper Stealth 4150 - 650 HP
Super Sniper Stealth 4150 Self-Tuning Fuel Injection System4150 Flange Supports Up to 650 HP 870 CFM Programable Inputs/Outputs Controlled by 3.500 in. Touchscreen (4) 100 lbs./hr Injectors Black Finish
Holley 4150 flange EFI carburetor replacement Supports up to 650 naturally aspirated HP or 600 forced-induction HP using (4) 100 lbs./hr Injectors 870 CFM flow rate All system wiring exits below the rear fuel injector cover, for a complete stealth installation and appearance 2.5 Bar MAP sensor Integrated ignition timing control Throttle body mounted ECU (4) wiring connections required (Battery +, Battery -, Ignition, RPM) High-resolution color touchscreen controller Calibration wizard tunes ECU without the use of a computer or extensive engine tuning knowledge Genuine Bosch LSU 4.9 wideband oxygen sensor provides realtime fuel map learn OEM-style throttle position sensor (TPS) and idle air control (IAC) 2.500 in. clamp-on oxygen sensor kit allows easy integration into older exhaust systems (3) Programmable 0-5 V sensor inputs for oil, fuel, dome or nitrous pressure sensors (6) Programmable ground outputs (1) +5 V reference output (1) Sensor ground 3.280 in. overall height -8 AN (3/4-16) female O-ring inlet/outlet Kickdown provisions for GM: TH350, TH400, 200R4, 700R4 Ford: C4, C6 Compatible with Holley Ultra XP Carburetor drop base air cleaners as well as most stock-style air cleaners with air cleaner locator provisions
Holley 550-874 550-874 Super Sniper Stealth 4150 Self-Tuning Fuel Injection System Features:
Installation Notes:
- Requires a Holley 510-12-886 external fuel pressure regulator (set to a base pressure of 58.5 PSI)
- Use 510-534-247 high-pressure fuel log for simpler installation
- For Troubleshooting Tips setting up your New Holley Sniper EFI System, please see this helpful video from Holley Performance.
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 Height9.3
Package Width12.5
Package Length14.5
Weight12.7 PG
Part CategoryPerformance Parts
Wiring Harness IncludedYes
Iat Sensor IncludedYes
Venturi Quantity4
Inlet Size-8 AN
Intake Manifold IncludedNo
Calibration Module IncludedYes
Throttle Body Mounting Flange4150
Distributor IncludedNo
Injection StyleThrottle body
Iac Motor IncludedYes
Fuel Pump IncludedNo
Throttle Body FinishBlack
Outlet Size-8 AN
Throttle Body IncludedYes
Metering StyleSpeed density
Fuel Pressure Regulator IncludedNo
QuantitySold as a kit
Injectors IncludedYes
Tps Sensor IncludedYes
Fuel Rails IncludedNo
EgrNo
Ecm IncludedYes
Oxygen Sensor IncludedYes
Injector Size (Lbs./Hr.)100
Part FitmentSemi Universal
Throttle Body MaterialCast Aluminum
Airflow Rate (Cfm)870 cfm
Map Sensor IncludedYes
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
HOLLEY
534-236 Fuel Crossover Kit for Stealth Sniper EFI 4150 Style Throttle Body
Part Number : 510-534-236
$13595
HOLLEY
534-237 Fuel Crossover Kit with Fuel Pressure Regulator for Stealth Sniper EFI 4150 Style Throttle Body
Part Number : 510-534-237
$33995
![Nylon Wire and Cable Ties [11 in. Black]](https://www.jegs.com/images/mini_200/500/555/555-10610.jpg)
![61-Piece Heat Shrink Tubing Kit [Black]](https://www.jegs.com/images/mini_200/500/555/555-10630.jpg)
![Crimp Connector Kit [160 Pieces]](https://www.jegs.com/images/mini_200/500/555/555-10705.jpg)
![AN Straight Max Flow Swivel Hose End [-8 AN Female to -8 AN Hose, Black]](https://www.jegs.com/images/mini_200/500/555/555-110002.jpg)
JEGS
AN Straight Max Flow Swivel Hose End [-8 AN Female to -8 AN Hose, Black]
Part Number : 555-110002
$849$9.69
You Save$1.20
![AN 90-Degree Max Flow Swivel Hose End [-8 AN Female to -8 AN Hose, Black]](https://www.jegs.com/images/mini_200/500/555/555-110022.jpg)
JEGS
AN 90-Degree Max Flow Swivel Hose End [-8 AN Female to -8 AN Hose, Black]
Part Number : 555-110022
$1699$18.29
You Save$1.30
![AN to NPT Straight Adapter Fitting [-8 AN Male to 3/8 in. NPT Male, Black]](https://www.jegs.com/images/mini_200/500/555/555-110107.jpg)
JEGS
AN to NPT Straight Adapter Fitting [-8 AN Male to 3/8 in. NPT Male, Black]
Part Number : 555-110107
$299$3.19
You Save$0.20
![Pro-Flo 350 Black Nylon Braided Hose [-8 AN, 6 ft]](https://www.jegs.com/images/mini_200/500/555/555-110921.jpg)
JEGS
Pro-Flo 350 Black Nylon Braided Hose [-8 AN, 6 ft]
Part Number : 555-110921
$3299$35.59
You Save$2.60
![Heavy-Duty Nitrile Gloves [7 mils Thick, Large]](https://www.jegs.com/images/mini_200/500/555/555-1124.jpg)
![Round Magnetic Parts Tray [5 1/2 in. Round]](https://www.jegs.com/images/mini_200/500/555/555-80080.jpg)
JEGS
Heavy Duty Circuit Tester for 6, 12 & 24 Volt Systems
Part Number : 555-80569
$899$9.99
You Save$1.00
![Hose/Cable Cutters [Overall Length: 24 in.]](https://www.jegs.com/images/mini_200/500/555/555-80586.jpg)
![Billet Aluminum 8 in. Adjustable Wrench [-3 AN to -12 AN]](https://www.jegs.com/images/mini_200/500/555/555-80625.jpg)
HOLLEY
Part Number : 510-534-236
$13595
HOLLEY
Part Number : 510-534-237
$33995
Some parts are not legal for use in California or other states with similar laws / regulations
