I keep getting this onetime shudder noise from what sounds to be below the driver's side dash/firewall area each time I drive. It happens within the first 100 feet after the car has been sitting and then I don't hear it at all for the rest of my trip. Occurs regardless of if I'm in gear or neutral. Any ideas?

Year: AP2 2006
Mileage: 53k
Mods: None, bone stock.

Videos of the noise are below. I'm pulling out the driveway and then coasting in neutral so you can hear the noise better. Should be getting my Gopro back tomorrow so had to make due with putting my cellphone right below the clutch pedal.

http://www.youtube.com/watch?v=3mqJkdGjmFc
(Noise at 0:16)

http://www.youtube.com/watch?v=b-Aa8dSj_p0
(Noise at 0:11)

 

Abs system self check?

 

...never heard that ...best of luck ...sounds like u hit something to me

 

Got my gopro back and added two more videos. Still can't figure out what is causing this.

http://www.youtube.com/watch?v=ISL1XEtZ5h0
Video taken by gas pedal. Noise at 0:09.

http://www.youtube.com/watch?v=pO07_mPAczQ
Video taken above foot rest that is to the left of the clutch pedal. (Noise at 0:03)