Originally Posted by Dervish

Installed the RS motor mounts today, replacing the stock mounts (993 part number ??) with RS hard rubber mounts. The hard rubber motor mounts reduce the flex of the drivetrain and provide firmer feedback from the engine and transmission. They have less rubber than stock but still enough to reduce most of the noise and the vibration.

I followed this install from p-car http://p-car.com/diy/motormount/ It's for a 993 but shows you the steps to follow.
A few tips from me are make sure you have a long enough socket extension as the underside nuts are tricky to reach. Also, the socket itself needs to be fairly deep as the bolt screws through the nut quite far. (I got around this by using the wheel nut socket found in the Porsche tool kit) You will have to remove the airbox and emission pump to gain access to the mounts. The instructions call for 2 people at one stage, one to hold the top nut as you tighten and torque the lower one. I got round this by having long arms and using a spanner on the top nut.

Ok, pics.
STOCK MOUNTS


RS MOTOR MOUNTS


Comparing the single piece stock mount with the RS parts (1 side only)


I haven't really had a chance for a proper drive yet but started her up and there is slightly more vibration throughout the cabin but only marginal. Can't wait for a long drive tomorrow