I tell you. My car still rumbles to hell at stops (semi-solid mounts from the engine back on a 7AT don't mesh well) and it still rumbles to hell with the ATI pulley. Soooooo, didn't do a whole hell of a lot for me...
That said, I had the Stillen UD pulley, loved it, and I would've left it on... Maybe next time I'm bored I'll even throw it back on, lol. I've clocked a lot of miles with the Stillen pulley with no problems. I've had my engine out a couple times, compression tests, etc, no problems...
I don't want this to turn into a thread arguing lightweight vs dampened though.
