Ah, I have a 2" cat back, no resonator, cannon on the back. It sounds nice, and
very loud. There's a little bit of rattle on start-up and when you rev it, but only before the engine warms up. By the time I get ~500m from home it sounds very nice. I also get a lot of comments on the tone it puts out!
My setup cost $520 or so, but the majority of it was in labour. It took longer than usual to get it custom made and set up, because I have my system "flanged up", so I can simply unbolt it at either the cat or just before the muffler, if I happen to get an EPA notice. I thought this was a great idea, and well worth the extra few bucks to get it done.
Cannon cost me $160. Its a proper one, not a thin piece of sh*t Chinese made cannon you can purchase at Autobarn or Repco for $70...