Hello from Iowa! I sold my 500hp 1st gen. 5.9 b/c i thought i needed a new 6.7. Boy was i wrong! I went to my dealer and told him I wanted a 6.7 daycab with a 6 speed manual transmission, and 4x4. Two days later I picked it up. Now with 7,000 miles on it I want more power and smoke! What I'm here to find out about is taking the dpf off and what the pros and cons are to it.? :headbang: