Since I'm going to be more then likely getting an fz6r here by next weekend. I want to learn what I can before hand. I'm not one to keep a bike with stock exhaust.... So been reading around. And a cheaper option I found to ditch the stock one is this one FZ6R XJ6 2009-2014 Full System Stainless Race Exhaust
Do I need the powercommander for it? Or will the bike just just fine with the stock mapping?
Do I need the powercommander for it? Or will the bike just just fine with the stock mapping?