You better look at what the emissions are, they are Federal! That's the EPA clean air act that you would be up against. There are way to may companies and individuals that wished they hadn't done any deleting! Big fines, trucks impounded and shops aren't allowed to work on them or face large fines! Caution on what you do. Any vehicle can be stopped on the road by a DOT officer, not just commercial vehicles. My Ram 3500 is stock and works prefect for my needs!
Yep days of deletes are all but over. Thats why you buy pre emission diesels if you want to mess with stuff.
6.4 is an amazing engine to build power with. Have fun with it.
Again Merica! There are some people that don't like emissions systems due to the complexity they bring. They were brought up with simple diesels that required no special tools and limited electronics. You can argue that emissions systems are better today but its impossible to argue that they are less troublesome than not being there. I really dont care one way or the other as long as there are salvage yards with blocks it makes no difference to me. Emissions are also a huge reason for the cost of new trucks. They have to not only figure out how to meet the standards but warranty the system so the consumer eats both of those. Again I dont care I think new trucks look ridiculous there is not one made in the last 15 years I would consider buying.
Most of my trips are a minimum of 300 miles, one way, and with plenty of long and steep grades. Yet, the lifetime average speed is 62 mph, and that's by far mostly on twisty 2-lane roads.