MEMORIAL DAY WEEKEND

HONOR2025

Holley EFI 550-1080 - Terminator x Stealth 4500 Kit

Holley EFI  |  MPN: 550-1080  |  SKU: HOLEFI-550-1080
$3,23895 $4,04995

Starting at $293/mo or 0% APR with . Check your purchasing power
PLEASE NOTE: Pictures may be repsentative of style, rather than the actual product. Read the description for more details.

Description

Holley EFI 550-1080 - Terminator x Stealth 4500 Kit

Holley EFI Terminator X Stealth 2x4 4500 Kit - Shiny

Terminator x Stealth 4500 Kit; Bolt On 4500 Flange; 2.125 in. Throttle Plates; Replacement For 2X4 Intake Manifolds; Incl. Weld-In O2 Sensor Bung; Shiny;

The Terminator X Stealth 4500 2x4 EFI systems from Holley features 8, 100LB/HR Fuel Injectors capable of supporting up to 1500 HP naturally aspirated or 1250 HP on forced induction applications. The Terminator X ECU is capable of fuel map self-learning and ignition timing control, improving idle stability, drivability, and wide-open throttle horsepower! Designed to fit with Gen 3 Ultra Dominator air cleaners and fuel crossovers, allowing you to easily convert your 4500 equipped 800+ horsepower dragster or door car!

  • Bolt on 4500 Flange Carburetor Replacement for 2x4 intake manifolds
  • 2.125" Throttle Plates, Flow 1440 CFM each for large cubic inch engines
  • Timing Control support integrated within the ECU using supporting components (distributor, ignition box, or crank trigger)
  • Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
  • Plug and play with Holley EFI Accessories, such as the 12.3" and 6.86" Pro Dash; CAN EGT; and Digital Analog style EFI gauges
  • 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!
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
  • Supports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb/Hr Injectors
  • Gen 3 Ultra Dominator Style 4 Bolt Air Cleaner Flange offering a variety of air cleaner options
  • Each throttle body contains 4x 100lb/hr fuel injectors
  • Universal engine harness allows you to easily install the Terminator X 2x4 4500 system on a wide variety of engine combinations
  • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
  • Available in 2 finishes, Shiny and Black
  • External fuel pressure regulator required, such as 12-848
  • Included weld-in O2 sensor bung for the exhaust ensures a leak free oxygen sensor installation
  • Throttle Linkage not included
Accelerometer Support: Yes
Boost Control: Yes
Brand: Holley EFI
CAN-BUS Support: Yes
Category: Air and Fuel Delivery
CFM: 2880
Coast Guard Approved: No
Coil Per Cylinder Ignition Support: Yes
Color: Shiny
Datalogging Support: Yes
Distributor Included: No
Dry Nitrous Control: Yes
e85 Support: No
EGT Support: Yes
Emission Code: 3
Finish: Shiny
Flange Size: 4500
Flange Style: Dominator
Forced Induction HP@60PSI: 1250
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
Grade Type: Performance
Handheld Included: Yes
Height: 3.85"
Horsepower Rating (HP): 1500
Idle Air Control Motor Included: No
Ignition Timing Control: Yes
Ignition Type: Universal
Individual Cylinder Fuel Corrections: No
Injector Size: 100 lb/hr @ 58.5 PSI
Inlet / Outlet Size: 8AN
Intake Manifold Included: No
Knock Retard Support: Yes
MAP Sensor: 1bar
Max Horsepower Rating: 1500+
Mounting Hardware Included: No
Multi-Stage Nitrous Control: Yes
Naturally Aspirated HP@60PSI: 1500
part type: Fuel Injection Conversion Kit
PDM: No
Power Distribution Module: No
Product Type: EFI System
Progressive Nitrous Control: Yes
Self-Tuning: Yes
Sub Category: Service Kits
Terminator LS Options: Fuel, Spark
Throttle Bore: 2.125 in.
Throttle Position Sensor Included: Yes
Traction Control Support: Yes
Transmission: N/A
User-Tuneable: Yes
Warning: California Proposition 65
Wet Nitrous Control: Yes

FITMENT DATA

Universal Fit
This product may require modification.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Venmo
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.


What are people saying about CSP?