The place was called GLC Fuel Systems located in Calgary. They didn't take the injectors out of the truck so to them they were just another set of injectors. I don't know if they have any special "Mitsu" skills.
I will say they had great service and were supper easy to deal with. I was also supper impressed with how quick they got back to me on stuff.
Here is there website: http://www.gclfuelsystems.com/

Cheers