You can remove the silencers from your exhaust for $0!!! Take a drill and either a die grinder or a dremel and clean up the mess. There are plenty of write-ups here on the forum that can provide all the assistance you want with probably 6 different ways of going about it. I just cut the silencers out of my 1098 pipes over the weekend and it got 2-3x louder (if it were something I rode daily it could possibly be a tad obnoxious). While I love the look of aftermarket cans I am completely satisfied in having the loud sound for no money. Didn't have to disassemble anything, all factory rivets are in place. I will likely tear them apart before summer gets here so I can remove the Cats so my butt doesn't fry when the temps reach 90 outside but that is another weekend project.
Just my $.02.