RX-8 Left Engine Mount (Manual)
When it comes to keeping the engine in place, and creating a boundary between the cabin and engine related vibrations,  there are no mounts better than the factory ones.
Fluid filled, meaning they are solid when compressed under hard driving, and completely compliant when resuming daily driving. They are the golden standard. 
Unless you want unpleasant cabin vibrations and noise at low RPMs while driving, we recommend staying away from aftermarket. These will suit your needs, whether it be the occasional trackday, commuting on a daily basis, or even just the routinely weekend drive.