* Should I bother replacing it? *
Yes, you should.
* Is it that important? *
Like you said, it prevent debris from entering the engine bay. Imagine a piece of rock or wood happens to lodge itself onto the belt area. It is also to keep the engine bay cleaner and easier to work on from dirt, road grime and water from entering the bay. Most technicians hate working on dirty cars.
* And if I do, what should I expect to pay? *
About $100, roughly, from the dealer
* Oh, and what is it called? *
Under carriage protector
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Sunday, December 14th, 2008 AT 3:00 PM