Holley 550-871 Fuel Injection, Sniper Stealth EFI, Throttle Body, Square Bore, Touchscreen, Aluminum, Black, Kit

$1,360.76
MSRP: $1,545.00
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SKU:
HLY550-871
MPN:
550-871
UPC:
90127077634
Condition:
New
Weight:
9.00 LBS
Shipping:
Calculated at Checkout

Applies To Continental U.S. orders only

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Holley's Sniper Stealth 4150 Master Kit gives you carburetor styling but functions just like the Sniper! A 4150 stealth is a great way to upgrade your ride to fuel injection in a cost-efficient way with just 4 simple connections required. Take your build to the next level and take advantage of improved engine performance, better MPG's and easier starting. This kit supports up to 650hp naturally aspirated and 600hp boosted with Four 100 Lb/Hr injectors!

You don't have to be a computer wiz or tuning professional to run a sniper kit on your build. Simplicity is what we strive for! Our calibration wizard allows you to just answer a few questions about your engine and the system will begin self-tuning with no laptop required. Use the high resolution 3.5" full color touchscreen for tuning and gauge displays. The stealth 4150 also includes transmission kick down provisions for GM TH350/400, 200R4/700R4 and Ford C4/C6 applications.

Once you made your conversion to EFI, don't stop there! Sniper is an Ecosystem! This kit pair's seamlessly together with Holley's Sniper Hyperspark Ignition, Fuel System's, Air Cleaners, Throttle Body & Digital Dash to unlock the full potential of your build.

Features

  • Bolt on 4150 Flange Carburetor Replacement
  • 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!
  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
  • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
  • 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.
  • Throttle body mounted ECU – no extra boxes to mount
  • Air entry is machined to fit most stock style air cleaners with air cleaner locator provisions.
  • Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
  • Integrated ignition timing control
  • 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

Instructions

Instructions - 199r11971.pdf

Instructions - 199r11970.pdf

Note: Part# 534-247 is required to complete installation.

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

ECM Included:
Yes
Fuel Injection System Type:
Single 4-Barrel Throttle Body (4150 Flange)
User Interface Included:
3.5 in. display, touch screen
Self Tuning:
Yes
User Tunable:
Yes
Wiring Harness Included:
Yes
Transmission Controller Included:
No
Drive-By-Wire Capable:
No
Drive-By-Wire Channels:
N/A
Traction Control:
No
Timing Control Compatible:
Yes
Injectors Included:
Yes
Fuel Injector Connector Style:
N/A
High Impedance Injectors:
N/A
Low Impedance Injectors:
N/A
Injector Size (lbs/hr):
100 lbs./hr.
Ignition System Included:
None
Coils:
Up to 1
Ignition Coil Connector:
1
Reluctor Wheel Tooth Quantity:
N/A
Inputs:
2
Outputs:
3
Wideband Controller:
Yes
Wideband Channels:
1
Oxygen Sensor Included:
Yes
Boost Control:
No
Nitrous Control:
Yes
Launch Control:
No
Engine Protection:
No
CANBUS Enabled:
No
CANBUS Networks:
N/A
Knock Control:
No
Knock Channels:
N/A
VVT Control:
No
VVT Channels:
N/A
Metering Style:
Speed density
MAP Sensor Included:
Yes
Multi-fuel Capable:
No
Flex Fuel Compatible:
No
Cam Sensor Included:
No
IAT Sensor Included:
Yes
TPS Sensor Included:
Yes
IAC Motor Included:
Yes
VR/Mag Inputs:
No
Data Logger:
Yes
Power Distribution Included:
None
Throttle Body Included:
Yes
Venturi Quantity:
4
Venturi Diameter (mm):
N/A
Airflow Rate (cfm):
870 cfm
Throttle Body Actuation:
Cable
Throttle Body Material:
Cast aluminum
Throttle Body Color:
Black
Intake Manifold Included:
No
Multi-Port Fuel Rails Included:
No
Distributor Included:
No
Fuel System Included:
None
Fuel Pump Included:
No
Fuel Pump Flow Rating (lph):
N/A
Fuel Pressure Regulator Included:
No
Maximum Horsepower with Gas:
650
Quantity:
Sold as a kit.
Make:
Universal
Transmission:
Manual

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