steering violently shaking while braking..

[cecil-1]

Deff sounds like the rotors. if ya feel it in the steering wheel more-its prob the front. if ya can feel it in the seat more- its prob the rear.

[Vettster]

Check the steering stabilizer.
I had to replace mine on my 06 at about 8K miles because it would do the same thing.
One of the few things the dealer wouldn't cover under the warranty.