Hi,

New here. I have a heat shield that is rattling from corrosion. Question:

Is the Heat Shield essential? That is, do I need to replace it or is it to protect the mechanic working on the car?

If I need to replace it, do I just purchase it from the dealer or can I get it from an online store. I looked up heat shield but it doesn't appear to be a part sold online. Is there a more technical term?

thanks in advance.