Riding a stock '15 Busa short of 2" lowering links and helibars. Considering adding an aftermarket exhaust, like the Yoshimura R77 full exhaust, or possibly a Brocks. Is this something that can just be bolted on and go, or does is a tune a must? I'm considering a power commander down the road as well, but exhaust is my first on the to do list. Any help would be appreciated.