Ok , girlfriends 03 Cobra started squealing horribly on the way in to work on the highway after shifting into 5th. Downshifted to 4th, continued to squeal with some vibration/grinding sound. (I'm quoting her). Now when idling (neutral or in gear/clutch depressed) there's a very load, metallic, squealing sound that seems to get louder as the clutch pedal is pressed to the floor.
We're thinking clutch, possibly throwout bearing. Any thoughts? Recommendations on clutch kits?
Car has ~55,000 miles. Mods are SC cooler and smaller blower pully. Stock blower. Car purchased at 20k miles, clutch is stock to our knowledge.
Any input would be appreciated.

 

Centerforce is what I use and it holds great when I drop the hammer at 430hp