race car mufflers

Does anyone still use glasspacks? They were really popular back in my high school days I was always a straight pipe kinda guy I dont think I've ever actually paid for a muffler. Anytime I need exhaust work I just get it straight piped but iv never had a performance engine. Usally low compression 318s aren't all that loud straight piped
Put a big fat cam in a low compression 318 with headers cherry bombs kicked out the side... It's loud! Ask me how I know.... And it gets even louder when you put a stroker in the 318's place...
The title to this thread is race car mufflers and to me if I had a full-blown drag strip race car it wouldn't have mufflers...
Myself personally I think I got as close as I can get to not having mufflers and technically have them....