Not sure how effective tuning boxes are on petrol engines but for diesel cars, manufacturers have certainly tried to keep them at bay with new software updates.
From my recent experience with my racechip one, over fuelling causes problems with the dpf sensor/dpf which can put the car into limp mode etc.
Diesel tuning boxes all work pretty much the same way (i.e. Extra fuel or (extra fuel and boost)) so it's not really the case of one tuning box is better than the other anymore, it's more about the manufacturers reeling in the fuelling tolerances to protect their engines. (added ecu security, dpf sensor tolerances etc..)
Disclaimer. I work in IT so take what I said with a pinch of salt...
Sent from my SM-G930F using Tapatalk
From my recent experience with my racechip one, over fuelling causes problems with the dpf sensor/dpf which can put the car into limp mode etc.
Diesel tuning boxes all work pretty much the same way (i.e. Extra fuel or (extra fuel and boost)) so it's not really the case of one tuning box is better than the other anymore, it's more about the manufacturers reeling in the fuelling tolerances to protect their engines. (added ecu security, dpf sensor tolerances etc..)
Disclaimer. I work in IT so take what I said with a pinch of salt...
Sent from my SM-G930F using Tapatalk