Well from a lot of people I've been hearing the pc3 is crap. Buddy had nothingbut problems with his loosing the map and had to re-upload it all the time. I'm a patient prson but I don't wanna have to bring the laptop out to he garage every other day. Bike has hindle slip on, k&n, gutted air box, 520 2up 1 down, original clutch, 54,000miles on the clock and still going strong but I want a lil bit more. Any other ecu options? Found a few but just curious what other people have used. Have a valve adjustment schedueled soon.