[onewhippedpuppy]

Originally Posted by ckelly78z

I have 4 diesels on my mini farm (Truck, Excursion, backhoe, and utility loader tractor) None of them have ever blown black smoke because I keep them tuned properly. Excess fuel is required to "roll coal", and that doesn't seem smart to me.

There are plenty of bros that still feel the need to run straight pipes, excess fuel, and accelerate wildly every day I see them.

Exactly. Mine actually runs worse when I increase the defuel settings in my tuner. Despite no DPF or cat mine almost never emits black smoke, doesn’t stink, and runs amazing.