Before the starts this isn't a actual vs match between these 2 companies but comparison of potential for the platforms we ride. Ive contacted 2WDW and i am content with what ive seen. Went to a bike function tonight and few guys were telling Guhls does good work as well with ecu flashing and a few s1000s run them. So i wanted to put a place where i can discuss the flashes from guys who have either or who has both. Even the guys who flashed their own with woolich im interested in as. To try and be a master of my own machine..