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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > M Series > E39 M5 (1998-2003)

E39 M5 (1998-2003)

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  #1  
Old 04-10-2011, 07:57 PM
messier781 messier781 is offline
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Location: ny
 
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Mein Auto: 1997 540i
cold air intake

how do u keep the filters clean for the dinan air filters..do u add oil to them like k&n filters..
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  #2  
Old 06-01-2011, 11:39 PM
whess09 whess09 is offline
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Location: Dallas, Tx
 
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Mein Auto: 1998 M3 & 2006 F-150
Quote:
Originally Posted by messier781 View Post
how do u keep the filters clean for the dinan air filters..do u add oil to them like k&n filters..
ya oiling is no problem for the dinan filter just be careful how generous you are with the oil, this is one of those situations where more isnt better. to much and you can ruin the MAF sensor, my roommate learned that the hard way
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Old 06-03-2011, 10:53 AM
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"S62" "S62" is offline
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Location: SF Bay Area, California
 
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Mein Auto: 2000 Imola Red E39 M5
Yes be very careful. A S62 engine performs no better than its MAF's, they are vital to its performance.
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Old 07-26-2011, 06:20 PM
ard ard is online now
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Mein Auto: '12 X5 35d/E39M5/996TTX50
Oiled filters are known to be bad for the M5 mafs, AND give almost no better performance.

The entire Dinan CAI, $2500 worth, adds AT MOST 6hp and only then with their software.

Unfortunately MOST OWNERS who oil their fitlers do not realize their MAFs are fouled and drive around with less HP than people running stock paper filters and changing them every other oil change.

IMO of course

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