my 08 8ball has stage one victory performance upgrade,at 35-40 under steady throttle it breaks up like a misfire and also pops between shifts but only real bad when its 65 degrees or colder outside,dealer saidnothing can be done or buy a power commander,but they dont have a listing for08 nobody does,the 08 has new injection with air\fuel sensors,anyone else having this issue,how can i fix it? I am an ase master tech and can overhaul an entire car\truck but have minimal bike exp. but injection is injection. and it drives me crazy that it runs like this. If I wanted these problems I would have bought a Harley, any help or suggestions would be great thanks for your time