Hey guys, I installed the C&D clutch last week and rode it (my Kids) this week with no huge difference. Called Colby at C&D racing and was told that I should return to the stock air intake system (the new recalled one) and keep the stock jetting. I am running a after market air intake and I believe the jetting is a 133 main jet. What are you guys running and what are your results? I know a few of you have installed the new clutch and state that you have seen a HUGE difference in performance. I unfortunatly have not. Please let me know what you guys are running and how you like it. Thanks in advance!