don't know what it is, obviously, when I get the tail loose in a corner, in the wet or dry, the wheels hop, almost a shudder, like 3-4 times a second, and I get out of it right away cause it feels like i'm going to break something, I have tried turning off PCM, the button on the right side of the small panel where the buttons for PSE and sport susp are...no change, I have eibach lowering springs only and all else is stock... do I just need to stay on he gas until it gets going, or... am I just getting old and scared of...it...

 

It is called wheel hop. Caused by acceleration causing suspension to travel, which causes loss of grip, suspension travels back, lather rinse repeat. Doesn't happen on properly tuned suspension.

Did you get a realignment after lowering the car?