I have a 03 f350 cc 2wd lb 7.3l with 300,324 miles on it. She was having a hard time starting but after warmed up she was good , well ok. Then I started loosing power and then came the miss at 2k rpm. So I ordered full force diesel stage 1 180cc single shot with stock nozzles. Also with the hydra chip. Wow what a difference they made. Starts right up. And the power is so much I have to get my transmission done. So I will drive in daily tune until then. My next upgrade will be to upgrade my turbo. I also dropped the tank and repaired the broken pick up screen and the 2 filters along with some fuel lines that were brittle.