Haltech Nexus R3 VCU ECU
The Haltech Nexus R3 VCU is a professional wire-in engine control unit (ECU) from Haltech. It has 8 injector and 8 ignition outputs, support for up to 8 cylinders, 2 drive-by-wire throttle channels, 1 onboard wideband lambda input and knock control. List price is US$2,585. 34 sellers list it from US$2,164 to US$3,014.
Prices checked . Specs from Haltech's published data.
Key specs
DBW = drive-by-wire throttle channels · λ wideband = onboard wideband lambda (oxygen sensor) inputs · CAN = controller area network buses.
Features
- ✓Drive-by-wire
- ✓Onboard wideband
- ✓Knock control
- ✓Flex fuel
- ✓Traction control
- ✓Launch control
- ✓Boost control
- ✓Gearbox control
- ✓Onboard logging
- ✕Ethernet
- ✓USB
- ✕Built-in display
✓ published · ✕ not offered · ? not published. Some features, like traction control and launch control, mean different things by brand. See the glossary.
Details
- Highlights
- ECU + PDM (4x25A outputs) + wideband + logger in one; Wi-Fi, G-sensor, trans brake
- Software
- NSP (free); Haltech Connect app
- Logging
- 128MB onboard
- Links
- Product page ↗
- Plug-ins
- Haltech makes 193 model-specific plug-in fitments. Find one for your car
- Tuning
- Find a Haltech tuner with a dyno
- Maker
- Haltech: history, software and every model
Where to buy the Nexus R3 VCU
35 sellers found
No sellers match. Try another region or turn off “In stock only”.
Prices as shown on each seller's site on , in their own currency, converted at 14 Oct 2026 rates. Shipping, import duty and tax vary. Check with the seller before you buy.
