Engine torque is the biggest killer of engine mounts, only good things come from reducing engine movement under load. This torque damper works as a restraint and damper in one.
A word from Okachan himself..."The engine tilts and shakes unexpectedly. Even if you're armed with Nismo's engine mounts and transmission mounts, you still have to stop the top part of the drift... And to make sure it's attached properly to a car with a turbo change, it's a running car, so I made it with that in mind. It's a damper. Let's be free from shift mistakes."