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558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS
558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS
558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS
558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS
558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS
558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS
558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS
558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS
558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS
558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS
558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS
558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS
558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS
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558-121 | 2X4 TERMINATOR STEALTH MAIN HARNESS

Holley EFI - 558-121


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$423.00$379.95
Holley EFI
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  • Brand:Holley EFI
  • CategoryService Parts
  • Product Code: HFI-558-121
  • SKUHFI-558-121
  • UPC: 90127009239
  • MPN558-121
  • Dimensions (L x W x H): 14.00in x 14.00in x 5.00in
  • Weight: 4lb
  • Some orders may require up to a 6 week lead time
  • local_offerDiscount 10%
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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

BrandHolley EFI
Emission Code3
Harness TypeMain
Product TypeTerminator Stealth 2x4
Part Number558-121

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More detailed
534-225 | THROTTLE BODY, TERMINATOR STEALTH POLISHclose

Replacement throttle body for Stealth Terminator EFI kit. Includes all sensors. Easy replacement, just swap the harness from your original throttle body and bolt it on.Features:Replacement throttle body for Stealth EFI KitBrandHolley EFICFM950Emission Code3FinishPolishedFlange Size4150Fuel Pressure43 PsiHeight3.000"Injector Size80Lb/Hr @ 43PSIProduct TypeStealth Terminator ThrottlebodyPart Number5..