I just had a Exedy Stage 1 HD Clutch installed in my car yesterday and yes it is not completely broken in with only 150 miles on it yet. I do get some chatter and some weird noises ive never heard before. Hopefully it gets alot better in the next couple hundred miles during the rest of the break in. My main question is how much would good motor mounts help clutch chatter and to remedy the problem, do you usually have to replace all the mounts or does just one or two help out?