Hello. We purchased our 2012 Subaru Impreza (base) 4 door new. Automatic with about 57k miles. It has always been a great a reliable car (just paid if off a few months ago, go figure). My wife mainly drives this car. I got in it the other day and noticed the exhaust is making an odd noise turning the car on and then off. Seems like either water or something isn't right. What are your thoughts? Always had routine service, oil changes synthetic. I put in a can of SeaFoam in the gas but the noise is still there. Any thoughts?
Noticed the the muffler/exhaust looks pretty black compared to my other vehicles that are ever older.
Video of car starting
https://youtu.be/vP83kXxiEMw
Video of car turning off
https://youtu.be/pmiheSf6_zM