Summit exhaust systems, are they decent?

This is the 3" Summit system on my Demon. 440 with pro part headers, so it had to be tweaked cut and welded. Had to shorten the tail pipe 1 1/2" where the muffler connected, so that the mufflers would fit up in and the tail pipes wouldn't hit the rear.
Link to the thread
http://www.forabodiesonly.com/mopar/showthread.php?t=73635

And the sound bite. It is loud, you can't tell how loud it is on the clip.
[ame="http://www.youtube.com/watch?v=jKpTqy9bKAc"]YouTube- Demon with new 3" exhaust[/ame]