I have a 06 WRX Limited with only a K&N filter and 100k miles. I started hearing a clicking sound. Attached is a link to the video from outside and then inside the car.
WRX Engine noise - YouTube
Oil was changed about 500 miles ago. Jiffy Lube said it was a quart low about 5000 miles between changes.
I use Super Unleaded gasoline.
I am the original owner, and do not race this car.
Sound started between the last 2 oil changes.
The sound is present when warmed up and when cold.
Any help would be greatly appreciated.