Haltech HT-220206 Nexus Rebel K ECU – Honda K20/K24 Swap Kit

Pre-order: The Nexus Rebel K is a brand-new Haltech release. Orders placed now are reserved and filled in the order they are received as soon as stock lands. We will email you with a dispatch date once it is confirmed — or call or email us any time for the latest ETA.

Haltech HT-220206 Nexus Rebel K ECU for Honda K20A/K24A/K24Z Engines

Wiring a K-swap from scratch means hours of pinning, splicing and chasing faults before the engine even fires. The Haltech Nexus Rebel K does that hard work for you. It is a complete, purpose-built kit — ECU, terminated harness, sub-harnesses and sensor pack — designed from the ground up for Honda's K engines, with a dedicated Rebel K Set-up Wizard in Haltech's NSP software to build your base map and get you tuning sooner.

Engine Compatibility

• Honda K20A
• Honda K24A
• Honda K24Z

Manual transmissions only. Sub-harnesses are included for both 2002–04 and 2005+ Honda K-series gearboxes.

Key Features

• ECU designed specifically for the Honda K-series platform
• Rebel K Set-up Wizard in Haltech NSP software for fast, simple start-up
• Terminated plug-in harness with factory K-series coil connectors built in — no ignition sub-harness needed
• Both drive-by-wire and cable throttle sub-harnesses in the box
• Wi-Fi connectivity for tuning and monitoring, onboard data logging and two CAN ports
• Easy integration with Haltech dashes, PDMs, sensor kits and expansion modules

What's Included

• HT-220003 – Nexus Rebel K ECU
• HT-186402 – Nexus Rebel K main terminated harness
• HT-186130 – Cabin adaptor harness
• HT-186122 – Alternator adaptor harness
• HT-186133 – Honda APP adaptor harness
• K20 and K24 crank sensor connectors
• Connector and pin pack for spare inputs and outputs
• HT-186016 – i4 Keihin primary injector harness
• HT-186168 – Honda DBW throttle sub-harness
• HT-186169 – Honda cable throttle sub-harness
• HT-187011 – Nexus 2002–04 Honda transmission sub-harness
• HT-187012 – Nexus 2005+ Honda transmission sub-harness

Sensor Pack Included

• Bosch LSU 4.9 wideband O2 sensor
• Weld-on fitting for O2 sensor
• Air temperature sensor, 1/8 NPT
• Weld-on fitting for air temp sensor
• Bosch knock sensor with stud adaptor and M8 nut

Not Supported

Automatic transmissions, OEM air temperature sensor, OEM knock sensor, OEM O2 sensor, VTEC pressure switch, thermofan switch, transmission reverse switch, serial communications with factory Honda DBW modules or BCM/ICC modules (no factory A/C request, coolant gauge, etc.), and low impedance injectors.

Why Choose the Nexus Rebel K?

Instead of piecing together a K-swap from a pile of separate parts, the Rebel K is engineered as one cohesive kit — ECU, harness and sensors all designed to work together from day one. That means fewer compatibility questions, a faster install, and a tuning-ready platform backed by Haltech's NSP software and support network.

Frequently Asked Questions

When will it ship?
The Rebel K is a new release and is on pre-order. Orders are filled in the order they are placed once stock arrives, and we'll email you with a dispatch date. Get in touch any time for the latest ETA.

My engine runs EV1, EV6 or Denso injectors — what do I need?
The kit comes with a Keihin injector harness. Haltech offers alternative injector harnesses: HT-186013 (GT150 / USCAR EV6), HT-186014 (EV1) and HT-186015 (Sumitomo / Denso). Contact us and we'll supply the right one with your kit.

Does it support automatic transmissions?
No, the Rebel K suits manual gearboxes only.

Can I keep my factory knock, O2 or air temp sensors?
No. The kit is set up for the included Haltech sensor pack, which replaces the factory sensors.

Can I tune it wirelessly?
Yes, the Nexus platform supports Wi-Fi connectivity for tuning and monitoring via the Haltech NSP software.