how difference does your engine make to the sound of your mufflers?

Well,1 muffler split open today,I don't think the other is far behind.Car sounds like a gravel truck now.:angry7: Looking for new mufflers,but down the road,a couple years or maybe earlier I intend to improve the engine some,cam and some head porting,not too sure how much else.Should I keep that in mind when i look for mufflers or will it not make much difference?I read a few threads and everyone was recommending different mufflers.I am looking for some noise,not real quiet,kind of a hollow tinny sound as well?Does that sound right? I'm kinda lost.Help me FABO.8)