That depends who you talk to. I think I've swapped everything I have to upgrade. I think all I have left are these pipes. I do have some Pro Design intakes. They are on the bike right now. I've thought about selling them and getting Boss ones to help fit my new carbs better. I think that's about it. Ive got a few stock parts, but nothing of much value. Head, steering stem, lower arms, intakes, stuff like that.