So I have an audi s4 2001.5 and i'm getting this strange vibration from the engine when either revved and driving when under load. It comes on after 3k but it goes away above about 4k. i also get kind of a rattle/clunk from the front over bumps. and everyonce in awhile when i hit the brakes just right the car will shake.

the upgrades are all listed below. I saw someone say something similar, they were told engine mounts or tranny mounts. another said disks but it would do that everytime i touch the brakes (not aftermarket disks, and good pad material left) and the other obvious ones would be either the control arms or wheel bearings. any way to check any of these without a lift