Haltech Elite 550 + Premium Universal Wire-in Harness Kit 2.5m (8')

Total Engine Control. Zero Compromise.

The Haltech Elite 550 is the entry point into Haltech's world-class Elite Series ECU lineup — and it doesn't hold back. Whether you're building a weekend track car, a street performance machine, or a custom project, the Elite 550 paired with the Premium Universal Wire-in Harness Kit (2.5m / 8') gives you everything you need to take full command of your engine's performance right out of the box.

Imagine the satisfaction of dialing in your tune with precision, knowing your ECU and harness were engineered together for seamless compatibility. This is the kit that serious builders trust.

What's Included

• Haltech Elite 550 ECU (SKU: HT-150404)
• Premium Universal Wire-in Harness — 2.5m (8') length
• Full connector set pre-terminated and labeled
• Mounting hardware

Elite 550 ECU Features

• Controls up to 4 cylinders — sequential fuel & ignition
• Supports drive-by-wire throttle bodies
• Built-in wideband O2 controller
• Onboard data logging — up to 100 channels
• Compatible with Haltech ESP (Elite Series Platform) software — free download
• CAN bus expansion for additional sensors and accessories
• Supports flex fuel, launch control, traction control, and boost control

Premium Harness Features

• Mil-spec wiring — built for heat, vibration, and harsh engine bay conditions
• Pre-terminated with Haltech-matched connectors
• Color-coded and labeled for straightforward installation
• 2.5m (8') length suits most engine bay configurations

Specifications

• SKU: HT-150404
• Harness Length: 2.5m (8')
• Cylinders Supported: Up to 4
• Software: Haltech ESP (free)
• Warranty: 1 Year Haltech Warranty

Note: This product may be available on back order. Lead times vary — contact us for current availability.