Holley Sniper Stealth EFI 4150 Self-Tuning Fuel Injection Kit 650 HP - Black Ceramic
For a complete installation, Master Kits include a complete fuel system with an external fuel pressure regulator preset to 58.5psi, 20ft of 3/8" Vapor Guard Fuel Hose, Fuel Pump, Filters, necessary hardware, and bulkhead fitting to return fuel into the tank!
Description
Holley Sniper EFI self-tuning fuel injection systems from Holley deliver all the benefits—and none of the hassles. These full-featured throttle bodies are easy to install, can support a lot of horsepower, and will keep your budget intact. They put an end to carburetor cold start issues, hesitations, vapor lock, and flooding. Each of these Holley Sniper EFI systems hit the performance mark with a mounted ECU and an integrated fuel pressure regulator. They're self-learning (no laptop is needed for set up) and they include a small color touchscreen to help you set up and tweak. Holley also provides you with a choice of finishes—satin black or polished aluminum. Make your conversion simple, while getting maximum bang for your buck, with a Holley Sniper EFI self-tuning fuel injection system from Holley.
Upgrade to Sniper EFI and get the tactical accuracy of EFI
today!
Features:
Bolt on 4150 Flange Carburetor Replacement
Throttle body mounted ECU – no extra boxes to mount
Supports up to 650hp with Four 100 Lb/Hr Injectors!
All of the wiring exits below the rear fuel injector cover, for a completely stealth installation.
Timed spark part for vacuum advanced distributors located under the front fuel bowl, for easy access to the distributor.
Air entry is machined to fit most stock style air cleaners with air cleaner locator provisions.
Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
External fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as 12-886.
Integrated ignition timing control
High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
Simple Calibration Wizard (answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!
Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
OEM Style TPS/IAC, for years of dependable service.
Included clamp-on oxygen sensor kit for 2.25" exhaust ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
Available in 3 finishes: Shiny, Black and coming soon, Gold
Emissions
1965 and older U.S. manufactured California Certified vehicles
The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:
This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.
1967 and older U.S. manufactured Federally Certified vehicles
1967 and older Foreign manufactured vehicle
Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.
Details
- 550-871
- 550-871
- Holley
- New
Shipping Information
- Item Requires Shipping
- 9.0 lbs.
- W11.0000” x H8.0000” x L12.2500”
- Free Basic Shipping
- FREE Fast Priority Mail shipping to the USA and it's territories on ALL Holley products
- TRE Performance Difference
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