October 4, 2009
Jjoak007, the black exhaust you are seeing is unburnt fuel. Like was mentioned, with the new trucks, the DPF is there to prevent that very thing from happening. So, if you want that, the DPF is the first thing to go and it will void your 100K mile warrantee on the engine.
Secondly, you will need to also chip the engine. That will tend to give you more power, which will lead to the black exhaust. But, as guys with the 6.0L motors have found, you start doing that and engine problems occur if you go too wild.
Sounds like a lot of heartache for a bit of enjoyment.
Chris "Thermo" Coleman, Nukie the radioactive 97 Ford X, and K'Re Ann the 03 Jag X