Andy. The Officer that pulled me over was from the Ministry of the Environment here in Ontario. I was pulling a 30ft cargo trailer and he was stopped on the side of the highway with his window half way down and heard my exhaust as I went by. I had never seen one of these inspectors on the highway. A friend of mine got nabbed last summer when he was towing a tri axle trailer with a Bobcat and he tried to show how quick he could get away from the green light. The MOE Officer followed him, waved him in and went through his truck. In his case he received a $900 ticket and was also given a month to get the truck back to stock. I don`t have my stock exhaust anymore and want to figure the best way to keep the flow through my exhaust as free as possible. A Performance shop told me he has seen this done in the past and i was looking to see if there would be any issues with doing this. I`m not sure what is contained in the DPF ,DEF and SCT and if its even possible to remove the guts of it. Thx