Hi im new to the forum but have been reading it for quite a while. With my 08 dodge 6.7 being stock for about 2 years i finally decided to do the deletes I bought a mini maxx, s&b intake and 5 in straight exhaust and wow what a difference H&S performance is amazingg! will have to say one thing and to answer alot of people questions about black smoke my mini maxx came already tuned with agressive turbo timing on it and i was seeing hardly any smoke i talked to a guy at H&S and he told me the tunes were smoke free and if i did get any smoke it would be with the agressive turbo tuning, which for one is completely bs. downloaded the no turbo tuning and get tons of smoke! It is a great product! but as far as my experience with there customer service it was horrible. With that being said the people on here that were not getting any smoke it is probably because your tuner alreadu came with the agressive turbo tuning.