Start with what the engine needs
Every Haltech ECU does the fundamentals: fuel, spark, sensors and datalogging. The differences come down to how many things it can control at once and which advanced features it supports. Before you compare models, list what your build actually needs:
- Cylinders and injection: how many injectors and coils, and whether you want fully sequential.
- Throttle: cable or drive-by-wire. DBW needs an ECU that supports it.
- Cams: how many variable cams need control.
- Extras: boost control, fans, pumps, nitrous, transmission control, sequential turbos. Each needs an output.
- Plug-in or wire-in: a plug-and-play kit for your car, or a custom harness.
Leave room to grow
The most common regret we hear is running out of inputs or outputs a year after install. If a bigger turbo, a DBW conversion or flex fuel is likely, buy for that now. Our article on reasons to choose a higher-spec Elite goes into detail.
Browse the range
See the current Haltech Nexus ECUs, Elite ECUs and kits, or everything under Haltech.
Still deciding?
If you're down to two ECUs and want a second opinion, book a free 30-minute consultation or contact us. We'd rather sell you the ECU that fits your build than the most expensive one.
