Hey all, got a 2010 r1 and have been shopping around for an exhaust. I was thinking about getting the m4 exhaust for the looks, sound and the hp gains are average with others.....but recently seen a clip with the hotbodies megaphone exhaust. Like the looks, the sound and its priced nice but I can't find any numbers on any hp gains. Does anyone run this exhaust on their cross plane or have any info on this exhaust. Any info, Thx.