I recently put on a Flowmaster 50 Series. At first I was not overly excited by the sound. A few days later I had a set of chrome boom tubes put on. All I can say now is Holy $#!&. It sounds awesome now, before it had this weird humm at 2100 RPM and now it is silky smooth. The best part was when I started it up at the local gas station a couple days ago and some dumb kids alarm went off, needless to say I laughed my ass off. If you are thinking about putting on an aftermarket exhaust definately get the boom tubes, you won't be sorry.