Delco E39 ECU Tuning
Engine control unit used in 38 supported models from 8 makes.
Buick with the Delco E39
All Buick tunes- Buick Enclave2007+3.6i V6AutoTuner
- Buick GL82000+2.5LAutoTuner
- Buick Lacrosse2009+3.0L V6AutoTuner
- Buick Lucerne2005+3.8i V6, 4.6i V8 32VAutoTuner
- Buick Park Avenue2007+3.0L V6AutoTuner
- Buick Regal2008+2.0L 16V, 2.0TAutoTuner
- Buick Verano2016+2.4L 16VAutoTuner
Cadillac with the Delco E39
All Cadillac tunes- Cadillac ATS2012+2.0T, 2.5LAutoTuner
- Cadillac CTS2007+2.0T, 3.0L V6 24VAutoTuner
- Cadillac SLS2006+2.0T, 3.0L V6 24VAutoTuner
- Cadillac SRX2009+3.0L V6 24VAutoTuner
- Cadillac XTS2012+2.0TAutoTuner
Chevrolet with the Delco E39
All Chevrolet tunes- Chevrolet Blazer2019+3.6 V6AutoTuner
- Chevrolet Camaro2011+3.6 V6AutoTuner
- Chevrolet Captiva2006+2.4L 16V, 3.0L 16V, 3.2i v6AutoTuner
- Chevrolet Colorado2017+2.5LAutoTuner
- Chevrolet Equinox2009+2.4L 16VAutoTuner
- Chevrolet Impala2012+3.6L 24VAutoTuner
- Chevrolet Malibu2013+2.5L, 3.0L 16VAutoTuner
- Chevrolet Trailblazer2006+2.5LAutoTuner
- Chevrolet Traverse2009+3.6 V6, 3.6L V6AutoTuner
GMC with the Delco E39
All GMC tunes- GMC Acadia2007+3.6L V6AutoTuner
- GMC Terrain2010+2.4L 16V Ecotec, 3.0L V6 24VAutoTuner
Holden with the Delco E39
All Holden tunes- Holden Commodore2006+Fifth, Fourth · 3.0L V6, 3.6L V6AutoTuner
Opel with the Delco E39
All Opel tunes- Opel Antara2006+3.2i v6AutoTuner
- Opel Astra2009+J, K · 1.4 T, 1.6 T, 2.0TAutoTuner
- Opel Cascada2013+1.4 T, 1.6 TAutoTuner
- Opel Corsa2006+D, E · 1.4 T, 1.6 TAutoTuner
- Opel Insignia2009+1.6 T, 2.0 TAutoTuner
- Opel Meriva2010+1.4 TAutoTuner
- Opel Zafira Tourer2011+1.4 T, 1.6L 16V TurboAutoTuner
Saab with the Delco E39
All Saab tunesVauxhall with the Delco E39
All Vauxhall tunes- Vauxhall Astra2009+J, K · 1.4 T, 1.6 T, 2.0TAutoTuner
- Vauxhall Corsa2006+D, E · 1.4 T, 1.6 TAutoTuner
- Vauxhall Insignia2008+A · 1.6 T, 2.0 TAutoTuner
- Vauxhall Zafira2011+MKIII / C · 1.4 TAutoTuner
About Delco E39 tuning
The Delco E39 engine control unit is supported in 38 models from Buick, Cadillac, Chevrolet, GMC, Holden, Opel, Saab, Vauxhall. We read, modify, and flash it with AutoTuner, then verify the result on our Dynojet 424xLC2 in Jenison, MI. A custom calibration optimizes fueling, ignition timing, boost, and torque limits for your exact build.
Don't See Your Vehicle?
These lists cover off-the-shelf tuning platforms. We also do standalone ECU installs and custom calibrations, so reach out and we'll tell you what's possible for your build. Compatibility data last updated 2026-09-24.