I don't understand what's confusing about what anyone has said in here.

They've given you the links to buy the correct clamps.

Some SD header's have flex's that work. I personally wouldn't worry about it until it actually starts to fail...then make sure all of your motor/transmission mounts are in good shape and just delete the damn thing. You don't really need it. I never had one...granted, my cam setup didn't really like anything with poly mount everything.