I suggest you do some searches, perhaps a dealer will have a set they want to part with at a good price. In KC, dealer (LETKO) is high on Leo Vance. Quality good and 'tuning' seems to be minimal. Call for Lee and tell them I sent you. I have Sil Moto on my S4R Monster and like them, however pipe goes over the oil filter so must remove to change oil. Pain, but not hard. Don't know about other brands.