Only on my MK4 which I ran for around 9 months
I'm running an R-Tech map now and have been for the last 18 months
Initially I thought the CC map was the dogs danglies until I put it on a rolling road and found it was 20bhp short of what they claimed
I did lots of checking and logging and Nick at R-Tech looked at it too. Needless to say there is a good reason why I'm now running an R-Tech remap as it produces the power its supposed to
I found Custom Code customer support rather lacking too - I had a dip in my rolling road graph which they put down to the traction control kicking in.......oh dear - it was switched off for the rolling road!! And they weren't interested in looking at the car
I dont' think R-Tech do a MK6 remap yet so I'd go for someone like REVO
HTH
