You remapped mine 313 a year ago when it was standard, apart from a pair of K&N panel's. It made a big difference in driveability and getting full throttle in the lower three gears was a big boost. Last month you fitted the Motordyne decats with their Y pipe and single sports cat and remapped to suit. This has made a massive difference to the pulling power right the way through the rev range it really just gets up and goes. I can't find your rolling road sheets but i suspect the torque is much improved with a flatter curve at least. Extremely happy with it in every way, and highly recommend it. Can't comment on fuel economy as if I want that I drive the Panda!! I have always used V Power, which I think is 98 ron, that probably makes no different to other high octane brands though.