This injector upgrade harness is designed for Terminator throttle body systems, built to be plug-and-play with Holley's 205 lb/hr injector upgrade kit.
Specifications:
- Product Type: Terminator Throttle Body Harness
- Designed for use with 205 lb/hr Injector Upgrade Kit (Part Number 522-205)
- Part Number: 558-439
Note: This harness does NOT fit the Terminator Stealth Throttle Body.
Compliance: This part is legal for sale and use on Racing Use Only Vehicles — competition vehicles that are not registered and never operated on the street. It is against the law to install this part on an Emissions Controlled Vehicle (1966-and-newer California-certified or 1968-and-newer federally certified vehicles).
FAQ
What is the 558-439 harness designed for?
It's an injector upgrade harness built to be plug-and-play with Holley's 205 lb/hr injector upgrade kit, Part Number 522-205, on Terminator throttle body systems.
Does this harness fit the Terminator Stealth Throttle Body?
No, this harness does not fit the Terminator Stealth Throttle Body.
Is this harness street legal?
No. It's legal for Racing Use Only vehicles and cannot be installed on an emissions-controlled street vehicle.

