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      05-16-2011, 10:07 AM   #23
Crazy AWD
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Drives: 2009 E90 335i xDrive
Join Date: Jun 2009
Location: Austin, TX

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Quote:
Originally Posted by Turbo Squid View Post
All seems normal until I look at the top side plumbing of the airboxes being fed right back into the intake stream.

1. There has got to be some sort of air pressure barrier to keep the boosted portion of the lines from blowing back out the air inlets no?

They've cleverly integrated the boost diverter valves right there at the turbo intake/charge pipe outlet. From the more side photo, you can see the air boost pressure hose just above the white dot on the intake.

Nice job M group!
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