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Sniper EFI 550-511-3PX Sniper 2 EFI System 4150 Style 650HP - Black

(Ford F-150 1975-79, 1984-87, Mustang 1964-73, 1983-85, F-250 1955-66, 1973-79, 1983-87, Bronco 1984-87, Thunderbird 1955-76 + 581 more models)

Manufacturer

Picture for manufacturer Sniper EFI

Part Number

550-511-3PX
8 reviews
Sale Price

$1,599.95

1 left at this price

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Usually delivered within 2 days

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Product Details

The Sniper EFI 550-511-3PX Sniper 2 EFI System represents an all-new design in self-tuning fuel injection technology. This patent-pending 4150-style throttle body EFI system delivers the ease of EFI with the classic look of a carburetor, making it the perfect solution for hot rods, muscle cars, and classic street machines.

Next-Generation Design Features:

  • Redesigned Injector Connectors: Improved electrical connections enhance long-term reliability and reduce potential connection issues
  • Cast-In Fuel Crossover: Integrated fuel rail design eliminates external fuel lines between primary and secondary rails for a cleaner installation
  • Contactless Magnetic TPS Sensor: Onboard throttle position sensor ensures accurate readings without the wear issues of traditional potentiometer-style sensors
  • Improved Throttle Geometry: Redesigned throttle shaft and blade geometry delivers smoother, more progressive throttle response
  • Hidden Harness Design: Wiring harness exits from the rear of the throttle body for a clean, professional appearance under the hood

Performance Specifications:

  • Supports up to 650 horsepower naturally aspirated or 575 horsepower with forced induction
  • Four high-flow 100 lb/hr fuel injectors provide ample fuel delivery for high-performance applications
  • Genuine Bosch LSU 4.9 wideband oxygen sensor included for real-time fuel map learning and optimization
  • Self-tuning technology automatically adjusts fuel curves as you drive

Simple Installation:

  • Only four wiring connections required: Battery positive, Battery negative, Switched Ignition, and RPM signal
  • Integrated transmission kickdown provisions for GM TH350/400, 200-4R/700R4, and Ford C4/C6 automatic transmissions
  • Mounts directly to any 4150-style carburetor flange

The Sniper 2 EFI System combines cutting-edge electronic fuel injection technology with straightforward installation and intuitive setup, making it an ideal choice for enthusiasts who want modern performance without the complexity of traditional EFI conversions.

Products specifications

Fits

Ford F-150 1975-79, 1984-87, Mustang 1964-73, 1983-85, F-250 1955-66, 1973-79, 1983-87, Bronco 1984-87, Thunderbird 1955-76, F-350 1955-79, 1983-87, Galaxie 500 1962-64, 1968-74, F-100 1955-66, 1973-76, 1979, Fairlane 1955-70 + 577 more models

Accelerometer Support

No

Air Metering Style

Speed Density

Boost Control

No

Brand

Holley Sniper EFI

CAN-BUS Support

Yes

Category

Air and Fuel Delivery

CFM

800

Coast Guard Approved

No

Coil Per Cylinder Ignition Support

No

Datalogging Support

Yes

Distributor Included

No

Dry Nitrous Control

No

e85 Support

No

EGT Support

No

Emission Code

3

Finish

Black

Flange Style

4150

Forced Induction Support

Yes

Fuel Filter Included

No

Fuel Hose Included

No

Fuel Injectors Included

Yes

Fuel Pressure

58.5 PSI

Fuel Pressure Regulator Included

No

Fuel Pump Included

No

Fuel System

Not Included

Grade Type

Performance

Height

3.28"

HyperSpark Ignition Kit

No

Ignition Timing Control

Yes

Individual Cylinder Fuel Corrections

No

Injector Size

100 lb/hr @ 58.5 PSI

Inlet / Outlet Size

9/16-18 Female O-Ring (AN 6)

Intake Manifold Included

No

Knock Retard Support

No

MAP Sensor

2 Bar

Max Horsepower Rating

650 Naturally Aspirated

Model

4150 EFI Conversion Throttle Body

Multi-Stage Nitrous Control

No

Part Type

Fuel Injection Conversion Kit

PDM

Yes

Power Distribution Module

Yes

Product Type

Sniper EFI

Progressive Nitrous Control

No

Self-Tuning

Yes

Sub Category

Service Kits

Throttle Position Sensor Included

Yes

Traction Control Support

No

Transmission

All

User Interface

3.5 in Handheld

User-Tuneable

Yes

Warning

California Proposition 65

Warranty

Two Year Standard, Extended Via Product Registration

Wet Nitrous Control

No

Ordering is very easy. Prices are good. Very helpful staff.

Ordering process was smooth as silk!

Very excellent servuce

Simple and easy!

Quick delivery of my order that was way less expensive than other sites.

Fast shipping

good price, free shipping

Great prices and quick service.

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