Yes, cost is because you are buying license from Woolich to retune ECU. That is actually cheap to own your own software. Dyno shops often use Woolich software, but you still need to purchase one license from Woolich to tune one ECU.
PC doesn't work anywhere nearly as well since it's piggyback outside of ECU. Also doesn't let you adJust as many settings inside ECU. PC only allows you to make fueling adjustments. You'll also need to purchase extra ignition module. Which is other half of tuning. There's also A LOT of problems from installing PC, starting issues, stumbling problems, runs worse than stock, etc. Do internet search for "power commander problems" and you'll find plenty. A lot of people rip out PC and go back to stock or go with re-programming ECU to match upgades.
Woolich gives you access to everything INSIDE of ECU for maximum performance. No need to install additional hardware.
