HMF offers a pipe for the foreman. I called them directly. From trolling other forums, it appears that both pipes are great performance, FMF powerline is quieter. I want the performance, but I don't want a bunch of noise either. I posted a link to ebay for the foreman 500 hmf pipe. I was just hoping FMF would have one available. He said to call in a few weeks, but shucks the bike is now 2 years old in production, why would they have 1 in a couple of weeks?