Thanks for your thoughts...I think I'll do an oil change just so I know what's in there...

I'm kind of hypersensitive to odd noises...I rarely turn on the radio so I can keep a keen ear on what's going on under the hood. I've built a few different projects over the years and always notice any sounds or smells that seem off...I can smell a radiator leak from 100 feet away. Since the RS is new to me, I don't know if it's been there for a while or something that needs attention just yet.

As far as the cam angles, I was definitely within spec, about 4 degrees if I remember correctly with an acceptable range from 2-6, so hoping the tensioner shoes are still ok. It definitely seems a bit louder on the passenger side rear, but I'll get out my stethoscope and put a better ear on it when my son can hold the throttle for me to test to see if it's on both tensioners or just one (which may indicate an issue).

I may take another look at this when my son gets home with his laptop and our VAGCOM cord.