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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
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CAD $809.95
CAD $952.88
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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)
| Make | Model | Years | Engine | Notes |
|---|---|---|---|---|
| Holley | Terminator Stealth EFI (2x4) | – | – | Compatible with Terminator Stealth EFI throttle bodies in 2x4 configuration; laptop tuning required |
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