I've had a couple of weeks to evaluate the benefits and I can conclusively say I'm satisfied The claim is 125PS and 225nm and up to 10% better economy. I have a couple of runs that I had previously monitored economy on one of which I recorded here http://briskoda.net/forums/topic/210036-tmc-tuning-box-fitted/ . Today I did my motorway run which previously gives typically 39-40mpg and I recorded 46.1 mpg. Finally in an entirely unscientific 0-62mph test with SWMBO time keeping in the passenger seat (ballast ) I did a 2 way run because the road has a very slight gradient and achieved an 8.9 second run out and a 9.3 second run back with DSG in S mode. Yes I know the speedo is slightly optimistic but equally the delay in reaction times from when I see the speed to when I say stop, to my timekeeper reacting and pressing the button, is not accounted for. As I said, unscientific but a step change from the 10.1 sec claimed as standard.

Not bad results!

Still havn't used 'S' mode in my car, must find a quiet road to use it

try to attend one of the RR days, and post us the results

still likley to get one of these for the vRS