Muffler noises

So I just took the catalytic convertor off of my S10 a week or so ago and I have my muffler making some funk ass noises, like a loose baffle or something. No exhaust leaks, so I figured the muffler is bad, but before I go spend the cash on one I wanted to see if I should try and find a heavier muffler, or a recommendation for a good muffler to keep it quieted down after taking the cat out. 2.5L 4cyl 91 S10.
Thanks!

Is it hard to say a good muffler?

If it is a hole in the pipe get a muffler shop to patch it up, I had a local shop weld my truck up, the trans support bar broke away from the pipe and it created a quater size whole and they weled in in 10 minutes, $20.00 bucks

Hope you don't have inspections where you live. They find the cat gone and they'll fail you. (You can also be fined).. Just warning you..

Hope you don't have inspections where you live. They find the cat gone and they'll fail you. (You can also be fined).. Just warning you..
Not a problem, no sniffers where I come from :)

Anyway, I have read up and found the Dynomax Turbo mufflers are a good choice. Can anyone confirm that?