HMF I would say is on the high-end of the low end exhausts LOL. Basically it’s a mid range exhaust. There is nothing wrong with them and if I found a good deal on a nice HMF system I would run it. You have to ask yourself personally is spending $500 on a new exhaust system to maybe gain 1 hp worth it to you? To me that money would be better spent on suspension or lightening your machine up or engine work that would gain you much more power than a new exhaust. So is there better exhaust than your HMF? Yes. Will you gain enough power to justify $500 on a new exhaust, I would say probably not. And personally I would be glad to have a different exhaust than everyone else, they are just blindly copying each other, it’s fun to be different.