Hi Lon,
Yup got it done, he does it at his house, he has a large garage and a large conservatory full of car magazines to wait in but no rolling road, but first impressions are good though!
He Vag-Commed my car first to clear any faults, the rest was done in secrecy so I suppose its easy to do if you know!
He usually tunes BMW Minis but he can tune almost any modern car with an ODB port, he adjust's fuel pump and other settings in the ECU but not to 'full on' like a tuning box does.
I had to travel from Manchester to his place in Birmingham, which was fine as I had a job to go to there and then off to leicester so most of yesterday was on motorways oh and the heavily scamera'd A628 (woodhead pass)
One thing I noticed straight away was the reduced turbo lag time, if your 2.5TDI (unchipped) is like mine I have a bit of a delay when setting off in 2nd at low speed, now no problem, accellerates straight away - and no smoke!
60-***mph time feels quicker.
There's only a slight rumble from the rear diff when I travelling uphill, 6th gear 40mph, (the tuning box made my diff rumble when hard accellerating at low speed)
I dont think the ODB tune gives the same power as a tuning box but the car feels better to drive than before, a lot smoother where you can travel in at low speeds in higher gears without having to wait for the turbo to kick in /ubbthreads/images/graemlins/wink.gif.
So up to now, all seems well!