I still have my factory clutch in the car and every time I push down on it, I can feel a weird vibration in the pedal. Some days its kind of strong and other days I barely notice it. Is this normal or should I have it checked out by the dealer? I have just under 44,000 miles on the car. It's not tuned and I just have the normal bolt on modifications that everyone else has.

 

That started to happen when my TOB was going. I'd go have it checked out. Especially since its still under warranty.

 

Whats a TOB?

 

throw out bearing..allows the spinning input shaft on the transmission to engage and disengage the clutch fork

 

Could also be out of balance. Possibly due to wear, but possibly also from a crack that could turn serious in a hurry. Getting a professional opinion would be a VERY good idea if you are not a good DIY mechanic.