I highly reccomend that you don't install polyurethane motor mounts, trans mount yes, motor mounts no. The fact that the motor doesn't torque over at all is great however for this you are transmitting all of the motor vibrations into the chassis. Fine for a race car, or in a situation where you need that much motor control, but bad for a daily driver. I have to have mine un-installed now and stock everyday rubber ones installed again. Wee.

I should have listened to that article in I think it was Camaro performance from back in 2001 where they reported the same thing but noooo, I didn't believe them.

i experienced the same thing but with the ES tranny mount. had to resintall the rubber one after feeling vibrations starting around 2000 RPM. i still feel some now but with the poly mount it got 10x worse.

hey with the es tranny mount did u remove the metal plate i hear thats a cause of alot of vibration.

yep first time with the plate, then sometime later put it back on without it. no change.

i read that article also which is why i wont get poly motor mounts