Pettit Racing Urethane Differential Mounts for your RX-8 replace the original liquid filled mounts which are prone to failure.
RX-8 Differential Mounts are available in two durometers and install with ordinary hand tools.
Street Set Black 80 Durometer
80 Hardness approximates the OEM part but with superior performance and improved stability.
Race Set Red 95 Durometer
The 95 hardness mounts will minimize compliance further but can transfer powertrain harmonics into the chassis