We've all heard from forums and numerous outlets that deleting your DPF system is the way to go these days. What we have never seen backing these claims is data and tests. It's always hearsay and misnomers that seem to find it's way to fueling the debate on whether to delete or keep your emissions intact. Well as you probably know, we like to take these tales and try to figure out for ourselves what is the truth behind what to do with the factory emissions.