I have a single in dual out muffler that was made by M&K for my 87 Carrera. I have stock heat exchangers and a cat. My car definitley has a much deeper growl than it did with the stock muffler. It does actually have a bit of a V8 sound to it at lower RPMs. At about 5,000 revs. the note is more of a wail or scream that sounds more like a proper racing 911 than a V8.
The craftmanship is top of the line on the M&K. Moreover, the M&K weighs 12lbs less than my stock muffler. That is a good place to take weight off a 911...
Finally, I had to switch back to my stock muffler today for a smog check. I have to admit there is something to be said for the stock sound as well. I am, however, glad I have both so I can switch back and forth as the mood strikes me.
Mike
