Hello guys, I have been dealing with (chip) tuning of diesel engines of newer years of construction for a long time. There are these two fundamentally different measures: Tuningbox – an additional device which distorts the incoming data and gives the control unit other operating states and real Ciptuning e.g. via the OBD plug where the characteristic lines in the software are changed directly. My question: Who has long-term experience with these tuning measures especially if a sootpart ikelfilter is available. I have always read only reports where you can read about excellent performance gains, low fuel consumptions of over 0.5 liters etc.. But no one has ever reported about his long-term experience: is it even after months/years, many kilometers like that. What was there for failures etc. Hit the keys – and please be honest !