M.B. Doc,

Do you mean that flapping noise shouldn't happen for this part and I should look elsewhere for the flapping noise or that it is defective and therefore needs to replaced? Sorry, just trying to clarify. You do mention that it is a "flap" of some sort. In your experience is this a common repair item or usually bulletproof? If it is malfunctioning, it'll affect the performance (high and low end)? Thanks.