Sorry for stealing this pic, but I'm curious what this little fitting is for. Wasn't present on my AWE exhaust, but it is on my new Milltek... and I don't have a bolt for it.

Anyone know what size bolt fits there?

Thanks much!

BTW... I found that my AWE droned pretty heavily on the freeway at 2200 rpm. Ended up driving in 5th most of the time, unless I was over 76mph. The Milltek is *much* quieter. Almost too quiet.

 

Answered my own question:

http://www.porsche.com/usa/accessori...originalparts/

90012402101 - Screw Plug.

Ok, guess I need to find one of these. failing that, anyone know the thread pitch?