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Old 02-22-2013, 07:20 PM   #8
bmw_n00b13
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Join Date: Dec 2011
Location: Nanaimo, BC
Posts: 2
My Ride: '99 528iA (E39)
FYI, the part is called the "distribution piece" or as carl0s said "air distributor". I'm guessing it feeds the vacuum system, and has some equalizing effect too.

Nice write-ups; making for a pleasant Friday evening in cold as f*ck Canada right now. Thank you.
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