Kinda look like woodcrafts to me. Muzzy gets all of there non-exhaust stuff made by someone else. Usually they have a little different setup than the person that makes it. For example, my damper from Muzzy is a black hyperpro damper with a mounting system that is subtly different from the damper you would buy from HyperPro. Usually you can just call them and ask who they are really made by.