Honestly I didn't see much difference between my old (perfectly fine) engine mounts and my new nismo ones. The SR engine will torque the mounts. I notice a little more vibration than before, but this could just be tuning.
I had a friend with solid mounts on a big block - having to retorque ever bolt on your car, every week sucks.
In summary, if you want really tight mounts the nismo ones will disapoint you. I bought them because they were cheaper than the stock ones at the dealer, and I had the engine out so what the hell... I might try my hand at making up a torque damper when I get some free time.
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