Holley Terminator® Stealth Series Main Harness | GBP Performance
  • -15%
  • FREE SHIPPING
Holley | Terminator® Stealth Series Main Harness Holley Accessories
Holley | Terminator® Stealth Series Main Harness Holley Accessories
Holley | Terminator® Stealth Series Main Harness Holley Accessories
Holley | Terminator® Stealth Series Main Harness Holley Accessories
Holley | Terminator® Stealth Series Main Harness Holley Accessories
Holley | Terminator® Stealth Series Main Harness Holley Accessories
Previous keyboard_arrow_left
Next keyboard_arrow_right
zoom_in
Holley | Terminator® Stealth Series Main Harness Holley Accessories
Holley | Terminator® Stealth Series Main Harness Holley Accessories
Holley | Terminator® Stealth Series Main Harness Holley Accessories
Holley | Terminator® Stealth Series Main Harness Holley Accessories
Holley | Terminator® Stealth Series Main Harness Holley Accessories
Holley | Terminator® Stealth Series Main Harness Holley Accessories

Holley

Holley | Terminator® Stealth Series Main Harness

558-121
Holley | Terminator Stealth Main Harness 558-121 | 2x4, plug & play, EFI upgrade | For Terminator Stealth throttle body
Free Shipping
CAD $809.95 CAD $952.88 Save 15% - FLASH SALE
Delivery in 2 to 3 weeks

Quantity

In Stock Online (Updated Every 24H)

  • PROUDLY CANADIAN
  • BEST PRICE GUARANTEE
  • GUARANTEED FITMENT

Holley – Terminator Stealth EFI 2x4 Main Harness

Description

The Holley 558-121 main harness is an upgrade component for Terminator Stealth EFI systems in a 2x4 side-mount configuration. It allows adding a slave throttle body to complete the EFI conversion using your existing Terminator Stealth throttle body. Also ideal for converting a supercharged 2x4 setup to electronic fuel injection. Plug-and-play installation for a clean, finished appearance. Laptop tuning required. Certified Holley EFI tuner/installer recommended.

Specifications

  • Brand: Holley
  • Part Number: 558-121
  • Configuration: 2x4 side mount
  • Type: Plug-and-play main harness
  • Compatibility: Terminator Stealth EFI throttle body (See Application Section)
  • Use: 2x4 EFI upgrade or supercharged combo conversion
  • Tuning: Laptop tuning required
  • Appearance: Classic Holley 4150 carb look
  • Colors: Multiple options available
  • Installation: Plug & play, quick install
  • Note: Certified Holley EFI tuner/installer recommended
  • Condition: New
  • Sold and shipped by GBP Performance

 

Note:

  • Livraison GRATUITE / FREE Delivery

Compatibility (Application)

MakeModelYearsEngineNotes
HolleyTerminator Stealth EFI (2x4)Compatible with Terminator Stealth EFI throttle bodies in 2x4 configuration; laptop tuning required
Holley
558-121
90127009239

Data sheet

In Stock
In Stock
Loading...