McLeod dual disc / RST

Noise, once fully broken in not so much as a peep. Recently installed one in my own car (we've done a dozen plus others), only downside, slightest bit of chatter on very light take off, load the clutch even just a bit and it's smooth as silk. Only real downside, cost.

CF Dual friction

in some rides, can hear wts rattle ever so slightly at idle, on most it's dead nuts quiet. If making big power with a PD blower, suggest you look at the above.