Muffler Repair and Photos
The BMW stock replacement is around $1000. That's a crazy amount for a muffler. Aftermarket mufflers (including a catalytic converter replacement pipe) vary from about $435 to $1200. Some of those replacements have a lifetime warranty. However, I'm told that aftermarket mufflers are universally louder than stock, and many of them have second rate construction.
I'm not ready to spend that kind of money, so I started looking at fixing my muffler. Stage one of the quick fix has already been done. I cut a short length of pipe from a VW aftermarket exhaust I had laying around. You can probably pick up a suitable short connector/adapter pipe from you local auto supply store.
The pipe inside curves up and then down, so the patch I've inserted is only about 1 inch long. I pre-drilled a small pilot hole in the patch pipe.
With the patch in place, I drilled up into the baffle, and put in a sheetmetal screw.
