You would get a ticket for sure and bike towed away at least here, I run a 2 bos carbon single and I wouldn't want to listen to anything with more db's. I wear ear plugs at all time's.
I cranked up my CBR once with the Akra off. Didn't ride it just wanted to hear what it sounded like. Would be obnoxious to ride like that. [video=youtube;sxBrRUAVjlA]https://www.youtube.com/watch?v=sxBrRUAVjlA&feature=youtu.be[/video]
I did this to my VF1100 and it sounded amazing with the loping v4 idle. Not really obnoxiously loud like some Harleys I have ridden with but you could certainly hear her when you cracked the throttle...