Hey guys I am finally heading out to but my mufflers for my dr. gas x-pipe and 2 1\2" exhaust system. I want something that is super loud with a nice sound. Are the spintech sportsman streets loud I have heard spintechs in general are loud but I don't know what muffler is the loudest(I want very loud to blow the balls off of all the ricers around). I also hear the prostreets are loud. But I don't think Ive heard them before. I have heard spintechs side exhaust and I love that. That is the sound I am looking for. What muffler will get me a loud sound that sounds like that. I have a choice between sportsman streets or prostreets.Which one is louder and cooler? I have a 351 Windsor in a 1969 Mach 1. Send me sounds and vids guys. Once I have my exhaust system put in I will post some vids. THANKS A LOT STANGERS