MPFI --what is this part?

This is the only part on my mpfi,that I see I dont have,
whats it called? & could I just get it from an autoparts store?
its the top/1st picture on the webpage,
(that little more of a shiny piece,that connects to the vacuum hose,above the throttle)

http://www.fourthgenhatch.com/mpfi.html

any help would be appreciated,

there's no pic, can you describe the location of it?

sorry I was just trying to fix that,lol

I still can't figure out what you are talking about from your description. :confused:

if you dont care too,
I placed a picture of what I'm talking about at this link:

http://kychapterdrastikimagez.8k.com/custom2.html

at the bottom of the page
thx

It is the dashpot diaphragm, It is used to slow the throttle down when the throttlebody is closing. Should be able to pick it up at a parts place.