The silver hair coming out of your exhaust is fiberglass packing, the sound-deadening material stuffed inside your muffler, and it’s now working loose and blowing out the tailpipe. It is not an animal, not a wig someone shoved up there, and not some creeping fungus. I know it looks alarming. But those fine gray strands are a manufactured material doing exactly what it shouldn’t, and their arrival is a quiet signal that your muffler is wearing out and worth a look.
So no, your car hasn’t grown anything. It’s shedding
