I got a great deal on a works clutch so I tried it (in my Mugen) and after 1 day of working great it would not stay adjusted. First it loosened causing the clutch to engage too soon. After readjusting it then it would randomly tighten or loosen after just a couple of tanks. I gave up. 2 guys at my track also running it, 1 with great luck, the other had the same problems I did.