I finally put these in to stop my sloppy rear and i can't really feel any additional vibrations. I guess it's because if have the solid mounts already. Anyways, i don't get that loud thump when i drop the clutch or when i shift hard through the gears. I'm happy with the results but it was kinda of annoying doing this without a lift. For the small amount of money they are, it was worth it. I forgot to mention, i got the track density mounts. Just giving the heads up