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      01-17-2013, 01:45 AM   #1
Drives: 2007 BMW 335i Sedan
Join Date: Oct 2012
Location: Vancouver

Posts: 415
iTrader: (0)

Would love to hear from others?
If you had carbon build up in the intake ports
What symptoms did you have?

I know about how to clean it via walnut blasting.

I mainly would like to know from others what issues you had.
Not sure if this only applies to n54s only.

Thx in advance
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