L's & G's

Just taken delivery of my new car finally, love it to pieces, but I had a 2.0TDI B7 before this, and I am currently missing some of the extra uumpff on the motorway.
I have found a chipping box that can be removed when the car is service, has anyone had any experience / feed back on this model?

http://www.racechip.com/chiptuning/v...88kw/index.php

Many thanks