Hello all! My 2015 has started making an odd noise coming from the exhaust area; it sounds like it's coming from the exhaust tip or muffler. At first it was just a small, quick rattle that would happen when I turned the car off. After a few more thousand miles, it also started doing it once in awhile coming to a stop, again for only a second or two, but the vast majority of the time it happens is still when I turn the engine off. Of course this started happening before a huge road trip so at this point it's been about 6,000 miles (car is up to about 93,000 miles) since it started and even a couple times it has done it within a minute after the engine shut off.
I did some research back when it first started and I've already checked the heat shields and those seem to be quite sturdy and in place. Bushings move a little more than I would like but don't seem to be the issue either.
Anyone have any ideas? Thanks for any info!