I just bought a Superchips Flashpaq tuner. I was initially going to just buy a Jet Stage 1 chip since my truck 99 R/T is mostly stock but for a air intake that I have yet to install. I've read the instructions and it seems simple enough but I haven't tried it yet. Is it going to be easy to choose the right tune and not mess up the PCM? I don't plan on adding anymore performance improvements to my truck it's mostly going to be used as a cruising truck and show truck once it's repainted.