Quote:
Originally Posted by igzekyativ
My 328xi currently has the oem exhaust on it, not sure if it has a valve already... can someone else chime in on this?
The iPE on my R56 tapped into an existing vacuum line and used a controller and vacuum canister to control the valve.
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Does look like it has a valve:
http://www.realoem.com/bmw/enUS/show...diagId=18_0611
Not sure how it is actuated though... will see if I can find the pump diagram.
EDIT: Not sure now, as when I look at the catalogue for my car I have a diagram for the vacuum pump under the exhaust section. Might need someone to clarify this though.