Ducato 2.3 JTDM — Marelli MJ9DF 4L43A228 — Tuning File Stage 1  - Copyright info

This Stage 1 tuning file is professionally developed for the modern Fiat Ducato 2.3 JTDM equipped with the Marelli MJ9DF engine control unit, software version 4L43A228. It is designed to unlock the full potential of your commercial vehicle or motorhome. The calibration focuses on delivering a significant increase in torque and improving the overall efficiency of the engine, resulting in a much more capable and pleasant driving experience.

With this remap, you will notice a marked improvement in the vehicle's ability to handle heavy loads, with stronger acceleration and less need for downshifting on hills. The enhanced throttle response and smoother power delivery make navigating city traffic and cruising on the highway easier and more economical. This is a safe, reliable upgrade developed for a stock vehicle, retaining all original safety systems.