We've had a number of cars brought to us recently with poor remapping jobs from local tuners. These cars all share something in common; aftermarket turbos have been fitted. Something that has become apparent is that most tuners who advertise remapping services for Abarths are buying files from the net that are designed to give a bit more oomph to the standard turbos (known as Stage 1) - these will not work well with larger turbos & the danger starts when they try to modify these maps in attempt to make them work without knowing what they're doing. Unlike standalone ECUs, Bosch do not design the Motronic system (as used in Abarth models) to be easy to remap.
Common issues we see are dangerous fueling, poor boost control & throttle plate closure due to safety mechanisms in the ECU being triggered. Sometime these issues will not be apparent to the owner of the car until it's too late.
The most recent example we saw was a TD04 converted car that had clocked in 400 miles on another tuners dyno, considering it had 3500 total miles on the clock it was shock to see it drive into our workshop coughing and spluttering which we traced down to a broken spark plug. We checked the engine over, abandoned the map that was in it and started afresh, the customer drove away yesterday with a big smile on their face.
Throughout the years we have collected hoards of real-world data from racing that we have put to good use in developing mapping that is safe and delivers reliable power for both Euro5 and Euro6 cars. We're also able to test exhaust emissions to ensure cars fitted with a sports cat can pass their MOT.
You can find more here: https://abarthracinguk.com/abarth-remapping