J jiggyhead New Member May 22, 2013 #1 Joined May 16, 2013 Location North Wilkesboro,NC,usa May 22, 2013 #1 Has anyone experienced any problems after installing any of these kits?How much of a HP gain can I expect to see if I install one on a Yamaha 250 HPDI?
Has anyone experienced any problems after installing any of these kits?How much of a HP gain can I expect to see if I install one on a Yamaha 250 HPDI?
