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Holley EFI Terminator Stealth 2x4 MAIN HARNESS 558-121

Holley EFI Terminator Stealth 2x4 MAIN HARNESS 558-121
Holley EFI Terminator Stealth 2x4 MAIN HARNESS 558-121Holley EFI Terminator Stealth 2x4 MAIN HARNESS 558-121Holley EFI Terminator Stealth 2x4 MAIN HARNESS 558-121Holley EFI Terminator Stealth 2x4 MAIN HARNESS 558-121Holley EFI Terminator Stealth 2x4 MAIN HARNESS 558-121Holley EFI Terminator Stealth 2x4 MAIN HARNESS 558-121
$626.99 ea
NEWARRIVING SOONEstimated Ship Date 04/19/2024 (If Ordered Today)15 Available from HOLLEY PERFORMANCE PRODUCTS as of 03/28/2024
Model: 4007778
STANDARD
DELIVERY
Introducing 2x4 Terminator Stealth EFI upgrade components. The wait is over. These upgrade components allow you to use your current Terminator Stealth EFI throttle body, install a new main harness, and slave throttle body, and you are finished. This upgrade is also perfect for anyone wanting to convert their 2x4 supercharged combo over to Electronic Fuel Injection!
Features:
  • 2x4 Side Mount Stealth Throttle Bodies – Provide the great looks of a classic Holley 4150 Carburetor, without any of the hassles
  • Multiple Color options allows for any Terminator Stealth EFI system to be upgraded to a 2x4
  • Plug and Play Main Harness provides a clean finished appearance and allows for a quick install!
  • Laptop Tuning is Required with this upgrade, we recommend taking your vehicle to a certified Holley EFI Tuner/Installer

About Holley Performance Products

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!

Downloads:

Download Name File Size
199r11755.pdf183.79KB
558-121_2x4_terminator_stealth_main_harness_diagram.pdf272.41KB

Specifications:

Emission Code 3
Harness Type Main
Part Type Electronic Throttle Harness
Product Type Terminator Stealth 2x4

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Holley EFI Terminator Stealth 2x4 MAIN HARNESS 558-121:
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