Yes you can buy a loader from either Malone or TDTuning, You read the original file form the ECU, send it to whichever you picked, they tune it - actual mapping, not a "programmer" like what you guys usually see on trucks, and they send you the file to be loaded. You don't
need gauges but I like them, or at least do some logging.
You don't need to do exhaust either for basic tunes.
Depending on where you are in GA, contact these guys for a tune, you could drive up, get tuned and be off on your way.
Malone Tuning, by AARodriguez - AARodriguez Corp.
You need VCDS to check the static timing.