Love this bike.
2016. M4 slip on, bar end mirrors, midpipe. That's it. This things is a monster. 8k miles so far. Got 6k out of stock rear. Front needs new soon. Michelin 2CT. For my skill level. Superb tire. Def going up front. For now, fast enough. 160 indicated. Will burn up 600cc sport bikes. 750 about par-ish. 1000, fun up to 130. Then bye bye. I haven't had any issues w throttle, maybe I'm just used to it. Midpipe, and cleaning the cat out, helped deceleration. Smoother engine braking. Super loud. May have to find my old db killer. M4 w cats, just a db louder than stock can..that's all I can think about now. I'm in love with this bike. Stay safe out there.