no, most are just remaps, chipping was the old days when you had to take the ECU apart. I'd also vote for bluefin although I would also consider the custome code offer if its still being offered. I did find with my GOlf the clutch was starting to slip after 25k with bluefin - the car had covered 53k when sold but I think that was something to do with the clutch as I had always found it heavy. On my FOcus which had bluefin that ran for 50k + and had zero issues.