m43b16 wtf?

[bmwpeti]

Hi. I have a compact with a '94 m43b16 engine.

Anybody knows where these vacuum pipes goes originally and what is this "modification" ?

http://www.powerfanatics.com/gallery/albums/userpics/16082/normal_Resize%20of%2020100728024.jpg

I checked it at the realoem.com but i did not found anything about it:(

[328isdude]

I think those lines are supposed to bring coolant from the engine to the throttle body to warm it up in winter conditions