That I would believe... OEM mounts wouldn't be such a good idea for a B20 :\

my personal opinion, i'd rather spend the extra $50 - $100 on some reliable, good source mounts, than just trying to "get the job done".

I'd honestly get some poly mounts, b20 produces a bit more torque for some OEM mounts :\ that rubber is just going to crack & rip apart fairly quickly :\

but then again, i'm a mazda head, new to the honda world (lol) but that would be my assumption.