A couple of days ago, my wife decided to take the truck out to get some groceries.  While she was out, she noticed that it was running a little funny.  She came home and told me and said that I should take it in to get some work done.  I told her that I would take it in in the morning. I assumed that I probably just needed to replace the 6.4 dpf delete kit.  When I took it in, it turned out that I was right, and it just needed to be replaced.  I opted to do it at home so it’d be cheaper.