Yes STi buy from Japanparts (could include other gear as well)...

Transmission Mount for GDB--->>>.

6 speed STi reinforced rubber 1005G-019-027.............. $56.32
or
6 speed Group N (harder still) 1005G-019-028.............. $76.03

GC8/GDB:
Transmission + Engine

5 speed STi reinforced rubber 1005G-019-026............... $56.32
Engine mount STi reinforced rubber 1005G-019-024........ $77.91
or
Engine mount Group N (1 only) 1005G-018-071.............. $134.22 (x2= $268.44)

Pitch Stopper (not really needed) 1005G-019-029.............$42.24


J