My truck, outa nowhere... got a little louder.
The exhaust now sounds like a p.o.s. truck exhaust.
Its coming front underneath the driver side, almost below the brake pedal.
Its not a ton louder, but its noticeable.
It is a 97 Chevy Cheyenne with 52,000 miles. (it was on an island in Alaska for 12 years!)
I can explain it any better than that.
What else could it be?