This may be a little of a long explanation but I think it is important to understand the mess I'm currently In. I have owned my 2005 F350 6.0l since 2006 and have loved everything about it. Shortly after purchasing the truck I installed a Bully Dog PMT and a MBRP air cleaner and exhaust. The power It had always amazed me I was in love with my truck and was satisfied. Last winter I began to find while driving on the freeway the boost would get stuck at zero and I would have no power. In spring with my mileage at 45k I decided to give my truck a little tlc so I first flushed the coolant system and changed to the Cat ELC coolant changed oil and added bypass coolant and oil filters. I then Installed a New Garret Powermax turbo, new exhaust backpressure sensor, and cleaned the EGR valve. Before ever starting the truck I though it would be a good Idea to update my BD PMT. To update the BD I needed to contact tech assistance due to the unit error regarding the VIN match. They reflashed my card and I updated. Immediately after starting and driving the truck for the first time it was not right. The truck had a large loss in power compared to before and also gave black smoke on acceleration. Use of any the BD power levels was not possible due to the excessive black smoke. I also found I lost all of my Trans tuning with the update. I first begged BD Tech help to please just give me my old program back but they refused. I feel robbed (Don’t Buy a BD). Finally with no help from BD I decided to take the abuse and listen to the why I should own a Dodge or Chevy and Fords suck speech from the only local performance Diesel shop in the Milwaukee area Huckstorf Diesel. They looked at my truck and found the PCM data screwed up from the BD so they reflashed the factory settings and again updated the BD. $318 later very excited to get my old truck back I picked it up and found it was exactly the same with no power and black smoke. I’m currently totally lost on how to get my old truck back and have even thought I might need to sell it to get out of this mess. Should I remove the BD and take it to a Ford dealer telling them just no power and black smoke. Are all of the programs BD and the PCM downgraded and my old truck is forever lost. With BD uninstalled I’m not sure of the power because I never drove much stock but I still have some smoke. The knowledge of the people in these forums impresses me and I may never be able to repay by adding much to posts but would greatly appreciate any advise or help to get my old truck back.