I have been searching for a programmer now for quite a while. As it turns out the best feedback I have found is about the Mads Smarty Programmers. I have an 08' CTD 6.7L. from what i have researched i have found that Smarty is probably the best to go with when it comes to cummins engines. although it doesn't have the fancy display like the bullydog PMT or the edge juice with attitude it looks fairly cheap. (haha and i know that its not about what it looks like its about what it DOES)..... can you guys please help me with this or someone who has experimented with different programmers put their input on this thread of mine. I know that the smarty's are great for the 5.9's but what about the 6.7's? any input is really appreciated. Thanks guys.....