LS swap standalone ECUs
General Motors' Gen III and Gen IV LS small-block V8, widely transplanted into other vehicles.
- Chassis
- Gen III LS · Gen IV LS
- Engines
- Gen III LS (LS1/LS6 etc) · Gen IV LS (LS2/LS3 etc)
- Layout
- 8-cylinder
You have 2 plug-in ECU options for the LS swap from Haltech. The cheapest complete setup is Haltech at US$1,695 including the ECU. 42 wire-in ECUs can also run this engine with a custom loom, from US$420.
Prices checked and include the ECU.
Your options for this engine
New to this? Three ways to fit an aftermarket ECU explains each one in five minutes.
Dedicated plug-in 0
Built for this car. Goes where the factory ECU was and plugs straight into the factory loom.
None listed for this car.
Standalone + adapter harness 2
A general-purpose ECU with an off-the-shelf harness that joins it to the factory ECU plug.
From US$1,695 →
Wire-in ECU 42
Any ECU with the right features, on a new or rewired loom. Best for race cars, swaps and big changes from factory.
From US$420 plus loom →
Reflash
Keep the factory ECU and rewrite its tune. Usually the cheapest, keeps every factory feature, but limited to what the factory hardware can control.
Reflash options for this car are still being checked.
Plug-in ECUs for the LS swap
2 options, cheapest first. Each one links to its full specs and sellers.
HT-220201 NEXUS Rebel LS - Suits Gen III
ECU + terminated engine harness; cable throttle, EV1 injectors, manual (T56 harness) ; high-impedance injectors only
HT-220204 NEXUS Rebel LS - Suits Gen IV
ECU + terminated engine harness; 6-pin DBW, EV6 injectors, manual; high-impedance injectors only
No plug-in is listed for that chassis and year. A wire-in ECU below will still fit with a custom loom.
Wire-in ECUs that can run this engine
Cheapest current unit from each brand with at least 8 injector and ignition outputs, so it runs fully sequential.
Add a loom: built by your tuner or a loom maker. Filter every wire-in ECU by features and price
Find a tuner for these ECUs
Shops with their own dyno that tune the brands above.
About the makers: Haltech