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Holley Sniper EFI Stealth 4500 Fuel Injection System 1440 cfm 550-841 FREE SHIPPING

  • Holley Sniper EFI Stealth 4500 Fuel Injection System 1440 cfm 550-841 FREE SHIPPING
  • Holley Sniper EFI Stealth 4500 Fuel Injection System 1440 cfm 550-841 FREE SHIPPING
  • Holley Sniper EFI Stealth 4500 Fuel Injection System 1440 cfm 550-841 FREE SHIPPING
  • Holley Sniper EFI Stealth 4500 Fuel Injection System 1440 cfm 550-841 FREE SHIPPING
  • Holley Sniper EFI Stealth 4500 Fuel Injection System 1440 cfm 550-841 FREE SHIPPING
  • Holley Sniper EFI Stealth 4500 Fuel Injection System 1440 cfm 550-841 FREE SHIPPING
  • Holley Sniper EFI Stealth 4500 Fuel Injection System 1440 cfm 550-841 FREE SHIPPING
Price:
$1,649.95
SKU:
550-841
Brand:
Availability:
Usually Ships Within 24 Hours
Shipping:
Calculated at checkout
Quantity:


Product Description

Fuel Injection Systems, EFI Stealth 4500, Polished, 1440 cfm, Gasoline, Kit

UPC: 090127045268

Self Tuning: Yes

User Tunable: Yes

Timing Control Compatible: Yes

EGR: No

Transmission Controller Included: No

Injection Style: Throttle body

Power Adder Compatible: Yes

Intake Manifold Included: No

Fuel Rails Included: No

Throttle Body Included: Yes

Throttle Body Mounting Flange: Dominator

Venturi Quantity: 4

Venturi Diameter (mm): 54.00mm

Airflow Rate (cfm): 1,440 cfm

Throttle Body Material: Aluminum

Throttle Body Finish: Polished

Injectors Included: Yes

Injector Size (lbs/hr): 100 lbs./hr.

Calibration Module Included: Yes

ECM Included: Yes

Wiring Harness Included: Yes

Oxygen Sensor Included: Yes

Fuel Pump Included: No

Fuel Pressure Regulator Included: No

Distributor Included: No

MAP Sensor Included: Yes

IAT Sensor Included: No

TPS Sensor Included: Yes

IAC Motor Included: Yes

Quantity: Sold as a kit

Notes: Not for use with engines producing less than 800 hp

For use with gasoline only

Use of leaded race fuels may shorten the service life of the WBO2 sensor

Holley Sniper EFI Stealth 4500 fuel injection systems are what you need to convert your dragster or Pro-street vehicle to fuel injection

For engines producing 800+ hp, the Sniper Stealth 4500 systems feature 8 100 lbs./hr. injectors and a throttle body that flows a massive 1440 cfm

These Holley systems come with a USB to CAN tuning cable and free downloadable Sniper EFI software to give you unlimited control of your engine

Holley Sniper Stealth 4500 systems will also look great under the hood in your choice of shiny, ceramic black, and classic gold finishes

Features and benefits include:

Supports up to 1500 hp naturally aspirated or 1250 hp forced induction with 8 100 lbs./hr. injectors
Compatible with draw-through or blow-through forced induction applications
2.125 in. throttle plates, flow 1440 cfm for large cubic inch engines
2.5Bar MAP sensor
Integrated ignition timing control
Programmable launch control via 2-step and timing retard. Both can be triggered by a trans-brake input
Gen 3 Ultra Dominator-style 4-bolt air cleaner flange
-8AN fuel inlets
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
Built-in single-stage wet or dry progressive nitrous control
Three programmable 0-5 V sensor inputs for oil/fuel/dome or nitrous pressure or other critical information
Six programmable ground outputs, five programmable ground inputs. These can be used to trigger or control external devices, such as nitrous solenoids and boost control solenoids. Or to provide the ECU with an input to turn on function, such as an ignition timing
One +5 V reference output, +5 V power supply for 0-5 V sensors, one sensor ground supply for 0-5 V sensors
Throttle body mounted ECU--no extra boxes to mount
Only 4 wiring connections required--battery +, battery -, switched ignition, and rpm
Required external fuel pressure regulator, 12-848 is recommended
Customizable secondary fuel pump output (TPS, rpm, or boost enabled)
User-friendly boost control with handheld adjustability
Free software included--comprehensive data logging tool to help you maximize the performance of your engine
Real-time data logging to the included 3.5 in. touch screen allows you to save information to the SD card without needing a communication cable
Programmable target air fuel ratios per boost level
Advanced boost control available via free Sniper EFI tuning software, including boost vs. rpm and boost vs. time
OEM-style TPS/IAC, for years of dependable service
Included clamp-on oxygen sensor kit ensures a leak-free oxygen sensor installation, with stainless steel T-bolt clamps and a stainless steel (weldable) oxygen sensor flange
Patent Pending


Product Videos

The NEW Holley SNIPER STEALTH EFI 4500 - Holley EFI Engineer Adam Layman (04:33)
Subscribe now to make sure you don't miss any of our new products! https://www.youtube.com/subscription_center?add_user=HolleyPerformance HOLLEY ON SOCIAL: Facebook - https://www.facebook.com/HolleyPerformance Twitter - https://twitter.com/holley_news Instagram - https://instagram.com/holleyperformance/ Website - http://www.holley.com Product Videos - https://www.youtube.com/playlist?list=PLNMSNx7tRu2uFKqJy5oCmXSW8usF5o7O5 PURCHASE: https://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/sniper_stealth_4500/parts/550-841
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