Haha...well I got mine done on the truck in about half an hour. Taking the ECM off and the transit times to CA n back would sure cost alot more then $400 in downtime. The guy who dod mine offers full support from 2 locations...another major PITA if I had to send it back to CA if it needed tweaking.
He can do just about anything Im sure, I know he can definately do the big 3. Its Jerry's Diesel Performance out of Edmonton and Ft. St. John BC. Edmonton # is 780 499 4983. Great folks to deal with and will ensure that you are satisfied with your new tune!