I have a 97 7.3 it has a 3in down pipe to a 3.5in straight pipe. It has an old edge tuner on it that came with the truck not sure what it is. I am looking to do some performance upgrades and don't know what to start with. I was thinking about doing an e-fuel system so that I could put bigger injectors later. I have also thought about an intercooler for it. Anyone have some advice.