I use them and I love them! I never knew what my bike ran like with stock carbs, so i can not compare the two. I think it add lots of performance to the bike. They are a link system not a vacume so the responce is very fast, to fast in some cases. It took me a while to get them set right but they seem to be working GREAT! I would reccomend them. If you need to call and ask questions call me
307-679-3574
