I just purchased 2008 Raider with K&N air filters and cobra pipes. Im only getting about 13mpg. not sure how the adjust the power commander. Guy I bought it off of is deceased and I have no hook up for it or manuals on it. Any help would be appreciated. There is a usb port on the handle bars im assuming this is for the pcIII. If I hook to my computer will it automatically adjust for me?