Anyone use Magnaflow mufflers? What do you think?

If someone maybe could post a sound clip?

I got a free A-body exhaust from the headers back. It is used, but in good shape.
It has Magnaflow mufflers on it. I was wondering if anyone liked these or if they suck? They are 2.5" I checked on Youtube and the clips I heard they sounded pretty quiet. I kind of wanted something louder. The thing is, for free?? I guess I can't say much.
Also for free a friend gave me 3" Super Turbos. I have a feeling though might sound a bit louder??? but I don't know If I can get them on the 2 1/2" system...

What are your thoughts?? Since our cars have no cats, our cars might be louder too. The clips I saw on Youtube seemed like newer cars w/cats.

Thanks!