I recently took my VX to my local exhaust guy to track down what sounded like an exhaust leak. We found that the original muffler was leaking in a few places and that a couple of clamps needed replaced.

He checked on a replacement muffler from Walker (same exact shape, inlet/outlet configuration/etc) and it was going to cost around $250. Even he thought that was steep though and said he had a round, clyindrical muffler in stock that would fit (about the same length) that would offer about the same noise reduction for $75 installed.

It's been just fine so far.