I just got the new 6.7 ford f250. I‘m not ready to void my waranty yet, so what is the best exhaust system I can run that will give me more power and some tone this thing is quite.
To stay under warranty you will have to get a dpf-back exhaust. Take a look at MBRP. They are the diesel exhaust company that I see the most. If you don't care about the warranty, then you may decide to straight pipe it.