Marelli 8GML ECU Tuning
Engine control unit used in 5 supported models from 3 makes.
Fiat with the Marelli 8GML
All Fiat tunes- Fiat 500X2014+1.4 Multi-AirAutoTuner
- Fiat Bravo2007+1.4 Multi-AirAutoTuner
Jeep with the Marelli 8GML
All Jeep tunes- Jeep Compass2017+1.4 Multi-AirAutoTuner
- Jeep Renegade2014+1.4 Multi-AirAutoTuner
Lancia with the Marelli 8GML
All Lancia tunes- Lancia Delta2008+1.4 Multi-AirAutoTuner
About Marelli 8GML tuning
The Marelli 8GML engine control unit is supported in 5 models from Fiat, Jeep, Lancia. 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.