Want a louder exhaust note

[Joe Perry]

So let me first say, I've had a fast intentions CBE 12" res for a year now, and I love it, sounds great and is fairly loud when you're stepping on it, but I want some more volume and I'm not sure how to go about doing so. I've considered test pipes, as they are only a few hundred bucks and I seem to have read it makes it a good bit louder. I was thinking about buying AAM short tails and having a muffler shop cut part of the short tails to make it fit the FI X-pipe, but I have a hard time giving up the beautiful muffler cans on the FI exhaust.

Also just installed a non-res FI exhaust on my buddies and it seems a little louder than my 12" but not much.

Any suggestions? Anyone think test pipes would add a decent amount of volume and call it a day.