Ok so thanks in advance for reading and pondering on this because right now I have no leads.
I have a 2012 S4 with around 61k on it with the modifications listed below. I've noticed when I turn the wheels and give it has it shutters a little bit but only when the clutch is engaged with the engine. It turns smooth with the clutch disengaged. Initially I thought something was in the wheel well but then I noticed it only happens when I put power through the wheels. It gets worse the further i turn the wheel.

Any ideas?

Mods:
AWE Cool Air Intake
AWE stage 2 supercharger pulley with GIAC flash
AWE touring black tip exhaust
ECS street shield