Just a quick heads up and sharing the news on a Bluefin incident I had. Bought the Bluefin for my Audi A4 30TDI CAB B8 2009 final edition (full spec as given) Friday night Bluefin arrives. Download original MAP onto Bluefin and uploaded to Bluefin/Superchips site. 10 Mins later reply received. New Map ready for download. Loaded up remap and then connected to car. Mid upload all error lights and fan comes on. Bluefin dies mid upload. Car ECU immobilises car. No one available at Superchips until Monday morning. Loss of car all weekend. Monday morning taken off from work 8am Monday called Bluefin. techie ... no idea what's wrong wait till James/Jamie Technical director comes in. 0830 Speak to jamie. Quick conversation and advised to open up BlueFin and CUT the yellow wire on the loom inside BLUEFIN. Done. 0900 Car back up and running in original condition, 0910 Remap loaded up (I think). No noticeable difference. Considering returning BlueFin. Only 2 comments. DON'T do a BLUEFIN upgrade over a weekend or on a Friday night. The guys at Bluefin were very nice and polite. No beef whatsoever with them. Just frustrating to have car locked all weekend when a 2 minute fix could have solved all my grief.