07 busa shuddering/slipping when releasing clutch


2007 busa, 20k. Started shuddering, maybe even slipping when downshifting higher rpms as I let the clutch out. This started several weeks ago. Now when I'm upshifting and letting the cluch out same thing. Doesn't happen every time but enough to get me a little worried. Engine/Trans all factory that I know of. It's got adjustable levers but don't think that's a factor. I'm hoping a new clutch will do the trick but would like to hear other opinions or advice. Thanks...Matt