I am thinking about going to a performance exhaust for my Tec 6HP Powersport, however noise is a consideration where we primarily ride (think neighbors calling cops).:sad:it's a quite a bit louder at first, then you just forget about it and have fun riding it. I ride it around my neighborhood, but it doesnt seem to bother people. I have a few people who ride way too LOUD harleys that live around me. I think robertsons sells a muffler that can be used with their header.