The internet is such a wonderful thing and gives access to just about everything and anything. I experienced this last night with Charles, my 14 year old. He was showing me all the muffler sites that he looks at. Just something he's into right now. What I didn't bargain for was listening, yes listening to all the different mufflers from various manufacturers. Not only can you listen to the different mufflers but you can click on different makes and models of cars and trucks and hear the different mufflers as they would sound on that vehicle. I have no idea how long we did this but I had a great time. My favorite was the 1955 Chevy Bel Air that had a Flowmaster 40 series delta flow muffler on. Charles and I both agree that the best muffler is one that makes our guts vibrate. The best place to experience that feeling is at a NASCAR race!