I wanted to ask some questions regarding my new 7.3 IDI I just purchased this week. I am now the new owner of a 1994 Ford F-250 7.3 IDI NA diesel truck. With that said, I had a few questions regarding replacement parts and a few upgrades for the truck. Exhaust: The previous owner had some type of baffle put in the end of the pipe which causes a loud pop and removed the muffler. Obviously, this is slightly annoying. I don’t mind the muffler gone but the baffle has to go. Are there any aftermarket kits and or what are my options for the exhaust? Intake: From my research so far, doesn’t seem to be any good upgrades for the intake. However, are there any small things I can do to help air flow? Fuel System: The previous owner has had a new IP Pump put in and he stated he turned it up 3 clicks. Is this to much or will this be okay for the time being? Additionally, my understanding is this model truck has a mechanical fuel pump. Can this be upgraded to an electric pump with double filters like on many of the more modern diesel trucks? If so, where can I find a good set of instructions on this upgrade? Cooling System: Looking for a link to the proper information regarding the SCA’s and DCA’s I need to put in the coolant. I would like to do a full service on the coolant before really putting any additional miles on it. Oil: Previous owner hasn’t informed me on the kind of oil and how much required during service. What will and I need and how much? Furthermore, how often do you all service your trucks? I apologize in advance for all the questions but looking to gather some information and parts and begin working on this project this weekend. Thanks!