I have a set and they work fine. They do allow more air to get to the engine than the Harley lowers. The guy who sells them (Arlington, TX.) has a problem with keeping a painter. There are times when it might take a month or so before he has product because the boat from China is late or his painter quit. I got mine in three weeks but they had black overspray all over them. It took about 4 hours of steady polishing to remove the black. If you can live with stuff like that, you will like them.