We'll see if you say that after Sunday's ride(TXBusa05LE @ Aug. 15 2007,10:00) Waste of $.
It made a nice diff in performance for me with just bolt ons and a BMC filter. Get a good map off their site and you might be suprised(Epstein @ Aug. 15 2007,09:12) I am thinking about buying a Power Commander and was wondering if it would really make a difference on an 06 Busa with just Yosh bolt ons. What do you think?