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      08-19-2010, 12:55 PM   #45
HP Autosport
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Drives: F80 M3
Join Date: Mar 2007
Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com

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Quote:
Originally Posted by Chrisbox View Post
With any of the drop-in filters, can you hear the DV?
It Might sound corny, but I like to hear the PSHHHT between shifts, and with no intake options for the N55 yet, I have no choice but to use a drop in.
The HP Autowerks, Inc. drop-in replacement filter has been tested with great results.

http://www.e90post.com/forums/showthread.php?t=416803
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