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E34 (1989 - 1995)

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  #1  
Old 04-24-2005, 11:30 AM
pong pong is offline
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Location: Phil
 
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Mein Auto: 525i "90
K&N filters

has anyone installed K&N air filters? (the cone type)

besides the nice sound, what else can it do? i have read some say that it is harmful and lowers HP. some say its good, filters more particles and increases HP

what does it really do?
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  #2  
Old 04-25-2005, 05:29 AM
EJ EJ is offline
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Mein Auto: 94 530i
This has been discused many times. People that have tried both say the stock filter is much better. It also filters better. You can do first hand research yourself but I am afraid it will be a waste of time and money. An EAT chip will be your best source for more HP.
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  #3  
Old 04-29-2005, 12:14 PM
Wengenstein Wengenstein is offline
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Location: New Hampshire
 
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Mein Auto: e34 540i 6sp
Quote:
Originally Posted by EJ
This has been discused many times. People that have tried both say the stock filter is much better. It also filters better. You can do first hand research yourself but I am afraid it will be a waste of time and money. An EAT chip will be your best source for more HP.
werd. The EAT chip or even the one from Dinan (which is just as good in my opinion, although a little pricey) will give you the most bang for your buck.

If you really want to modify the intake, you could prolly still find the larger intake tube and bullhorn shapped inlet pieces that Dinan used to make..
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'95 540i 6sp, UUC SSK, Dinan chip
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  #4  
Old 04-29-2005, 12:22 PM
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Alamo Alamo is offline
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Quote:
Originally Posted by pong
has anyone installed K&N air filters? (the cone type)

besides the nice sound, what else can it do? i have read some say that it is harmful and lowers HP. some say its good, filters more particles and increases HP

what does it really do?
I did & got the check engine light
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  #5  
Old 04-30-2005, 08:07 AM
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Falke Falke is offline
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Location: Michigan
 
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Mein Auto: '94 530 i
What about the K&N Square Drop-in Filters?

Seems to me that wouldn't mess with anything, But I don't really know.
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