Well, I am suprised that there are a lot of people who haven't heard of hindle, but as speedvlaze said, if you like loud, you can't beat it. I am quite happy with the pipe. It is very good build quality, and in my experience with slip ons, it gives you just as much extra hp as any other slip on, just a helluva lot louder. It only cost me about 280 bucks, and knocked a good 9 or 10 pounds off the weight.