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$999.95
Holley Sniper 550-511 EFI 4150 4-Barrel Self-Tuning Base Kit
Holley Sniper 550-511 EFI 4150 4-Barrel Self-Tuning Base Kit

Holley Sniper 550-511 EFI 4150 4-Barrel Self-Tuning Base Kit

Universal Fit, 4-Barrel Square Bore Carburetor Flange Type, Throttle Body Injection Style

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Holley Sniper 550-511 EFI 4150 4-Barrel Self-Tuning Base Kit
Holley Sniper 550-511 EFI 4150 4-Barrel Self-Tuning Base Kit
Holley Sniper 550-511 EFI 4150 4-Barrel Self-Tuning Base Kit
Holley Sniper 550-511 EFI 4150 4-Barrel Self-Tuning Base Kit
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Holley Sniper 550-511 EFI 4150 4-Barrel Self-Tuning Base Kit
Holley Sniper 550-511 EFI 4150 4-Barrel Self-Tuning Base Kit
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Part # 425550511
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Details

Carburetor Flange Type:
4-Barrel Square Bore
Injection Style:
Throttle Body
User Tunable:
Yes
Self Tuning:
Yes
Injectors Included:
Yes
Injector Size:
100 lbs./hr.
Intake Manifold Included:
No
Metering Style:
Speed density
EGR:
No
CFM:
800 CFM
Throttle Body Included:
Yes
Throttle Body Material:
Cast Aluminum
Throttle Body Finish:
Black
Venturi Quantity:
4
Fuel Pump Included:
No
Fuel Rails Included:
No
Calibration Module Included:
Yes
ECM Included:
Yes
Wiring Harness Included:
Yes
Fuel Pressure Regulator Included:
Yes
Distributor Included:
No
MAP Sensor Included:
Yes
IAC Motor Included:
Yes
IAT Sensor Included:
Yes
TPS Sensor Included:
Yes
Finish:
Black
Use with Power Adder:
No
Max Horsepower Rating:
650
Color:
Black
Throttle Body Barrels:
4-Barrel
MFG. Part #:
550-511
GTIN Code:
090127739877
Sold in Quantity:
Kit

Info

Put an end to mysterious air/fuel ratios, jet changes, and cold-start rough idle troubles with Holley Sniper EFI. Affordable aftermarket fuel injection is here and it couldn't be any easier to install on your vehicle. Holley Sniper EFI is a perfect match for any muscle car, classic truck, street rod, or nearly any other carbureted vehicle. Economically priced to save your hard earned money for other parts of your build; Holley Sniper EFI is a self-tuning, plug and play fuel injection system that takes all the trouble and guesswork out of your switch to modern electronic fuel injection. With over 100 years of building quality fuel systems, you can trust Holley Sniper with all your electronic fuel injection needs!

Holley Sniper EFI is packed with all the features that your car or truck needs. This throttle body fuel injection replaces any square bore or spread bore style 4-barrel carburetor. The built in ECU keeps the wiring neat and tidy with no need to run the computer and associated wiring back into the cab of the vehicle. Connect the 4 necessary wires and you're good to go. The self-learning ECU takes care of setting the baseline tune while the full touchscreen display allows you to fine tune as you please. Sniper EFI throttle bodies utilize OEM style TPS and IAC modules for dependable and serviceable use. Life is too short to hassle  with cold start issues, hesitations, flooding, and carburetor inconsistencies. Leave that old 4-barrel to rest and bring in a new era of performance, reliability, and fun with a Holley Sniper EFI system!

  • Direct carburetor replacement
  • Fits single and dual plane intake manifolds
  • Naturally aspirated applications only
  • Throttle body mounted ECU - no extra computers to mount or relocate
  • Capable of supporting up to 650 HP
  • Simple, 4 wire connection (Battery +, Battery -, Switched ignition & RPM)
  • Built in pre-set fuel pressure regulator
  • Integrated ignition timing control & coil driver
  • Color touchscreen for easy setup and gauge displays
  • Self tuning ECU means you dont have to be a computer/tuning expert to enjoy EFI
  • Black finish
  • Sold individually

Important Messages:

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations

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