Thanks!
Here you can find some details about the possible remap:
https://www.br-performance.be/en-be/...-1-9-multijet/
We can see that they provide eco remap or stage 1 remaps. Both gives the same extra torque, so I guess the torque curve is the same that the one we can see in the stage 1 section
They claim 35% less fuel consumption, sounds completely irealistic, it means going from 45mpg to 68mpg...
For the tires, we have in Europe a specific label that gives infos on tyre noise, wet braking and rolling resistance. I think that my actual tires are ranked C and E, or E for all 4 tires. I'll get A ranked tires, but will I really decrease my consumption by 0.45l/100km as it is claimed? Seems huge! ( It means that I'll go from 45mpg to 49.5mpg! )
Here is the details about this label and the consumption
https://www.tyreleader.co.uk/tyres-a...ar-tyres-label