Showing 1–24 of 301 results
Standalone engine management ECUs: Haltech Elite & Nexus: for petrol and diesel builds, with plug-and-play harnesses. Supplied, wired and dyno-tuned in-house. Commonly stocked for TB42, LS2 and LS3 engines.
ECUs by vehicle
Standalone engine management ECUs
Take full control of your engine with a standalone ECU. We stock the Haltech Elite and Nexus ranges for petrol and diesel builds, from a mild street setup to a full race car.
Build the package
Round out your engine-management setup.
Supplied, wired & tuned at Willys
We don’t just sell ECUs. We wire and dyno-tune them in-house. Plug-and-play (PnP) adapter harnesses are available for many platforms, so you can fit an Elite or Nexus without cutting the factory loom.
Engine management ECU FAQs
Which ECU do I need, Elite or Nexus?
Elite suits most engine-management upgrades and standalone conversions; Nexus integrates the ECU and power distribution for cleaner, advanced installs. Tell us your build and we’ll point you to the right one.
Do you supply plug-and-play harnesses?
Yes. PnP adapter harnesses are available for many popular platforms, where supported.
Can you wire and tune the ECU?
That’s our specialty. We supply, wire and dyno-tune in-house. Talk to us about a complete supply-and-tune package.
