[10/10ths]

.....the issue with the 986/987 Boxster muffler is that it is a "tuned" part of the engine balance system. The muffler was "tuned" by the engineers to absorb vibration and harmonics in the powertrain. It acts as a vibration damper.

Soooooo, if you install a super light muffler, you will get wicked annoying drones and other vibrations in the cabin.

If you are just driving her like a regular car, out in the "Real World", then you will want to keep it as OEM as possible. That's where the FVD Brombacher "Sound Version" muffler I posted works. Great sound, zero down side.

Now, if you are racing this thing, then sure, you can drop a lot of dead weight and put on some super light muffler. But that will drive you batty off the track.

There's no real point in installing a super light muffler, unless you've stripped the interior, all the carpeting, and gone on a diet yourself.

Good luck.