2001 986 throttle body and intake

[lizBox]

hi -
I'm ready to try cleaning the throttle body on my 2001 986. Pedro's garage has a pretty straight fwd diy:

http://www.pedrosgarage.com/Site%203/Clean%20the%20Throttle%20Body%20%20%20.html

Pedro's pics are from a non egas so are different from what i see when looking at mine.

I'm curious to what a few parts on the intake do. Can someone take a look at these pictures and identify items that I have marked in the first picture as 1, 2, and 3?

These aren't stopping me, I just wonder about their functions.

thanks!

[j.fro]

#2 is a sound baffle, or muffler, for intake noise. Lose it, and the car will sound beautiful!