The ES kit's # is 16.1106, and then R or B for red or black, for all three inserts (2 lower fronts and rear.) I just installed the ES kit - worlds easier to get to the rear with the tranny out, loosen driver's side mounts, and use a jack to lift the motor a bit and slide out the rear mount. (Did it during a clutch install last week.)
I had to stop the turn signals from rattling, and a couple other little annoyances, but once the extra noise is gone, it doesn't feel that much worse at idle - but yes, noticeable. With the extra noise, it made me wonder if people would think something was wrong.