Wow that sucks. Honestly, though, who steals a muffler?
Was the muffler visible from a normal standing position outside the car? I know I can't see muffler on either of my cars unless I actually bend over to look. Makes me think either someone heard your car and knew you had an aftermarket muffler, or it was someone you know (maybe a vague acquaintance) that knew you modded the car. A friend of mine had his whole multi-thousand dollar stereo system stolen from his car a few years ago. Funny thing is, the thief knew exactly where he hid his amp and had all the appropriate tools to take out the front passenger seat and unmount the amp as well as the well-secured head unit (i.e. not your typical "smash and grab" thief). My friend still contends it was someone he knew, or a friend-of-a-friend that knew about the value of his stereo.
