Hi there,
There is a great deal of tin work around the subaru exhaust system, so there is a bit of noise and movement when it cools down, as for the smell, you may have a small oil or coolant leak dripping onto the exhaust. Have a good look around and see if you can identify any leaks, if in doubt take it to your mechanic for an inspection.
Mark (mhpautos)
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Wednesday, December 5th, 2007 AT 2:42 AM