agree about the rear hanger, not sure what would give me the same kind of support though, it seems very stout. loading video right now, its surprisingly very quiet, and a power pick up on the top end is very noticeable, and a loss low.
Exhaust valve is gone no so no need to do anything but pull the cable up and out of the way. ECM spy will allow you to turn off the Servo motor and remove it without throwing a CEL. Tuneing is up to you. Your basicly running the same thing as a Jardine and several people run them without tuning. As far as a preprogrammed ECM.....again the closest thinh you will find is for a Jardine.
my concern was potential internal engine damage (valve burning ie.) im very familiar with tuner pro as ive used it to tune my camaro. funds are tight at the moment, so a cable and purchase of a few other mods is gonna have to wait. i dont want to wait to ride, just got back from a long ride and im very happy with sound and the power seems in favor of Hauling A$$... oh and wheelies