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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 03-27-2011, 06:48 PM
calebwoodd calebwoodd is offline
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Location: San Diego
 
Join Date: Mar 2011
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Mein Auto: 2000 540i Sport M Package
Best Cold Air Intake or other mod suggestions?

Hi everyone - just picked up a 2000 BMW 540i Sport and wanted start modding it out to increase HP and mileage - can some of you share first hand knowledge about which aftermarket upgrades you have used and have done well or not so well? Anything u can suggest from fuel filters to chips and exhaust etc would be welcome advice...
Thanks!!
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  #2  
Old 03-27-2011, 07:11 PM
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chiefwej chiefwej is offline
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Location: Tucson, AZ
 
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Mein Auto: 2003 540i/6 //m-tech
Save your money for repairs. There isn't much that can be done to gain a lot of performance w/o spending a large sum. CAI will do nothing but increase the chance of hydro lock destroying the engine. If you really want a faster car, it's either supercharge or trade up to an M5.
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  #3  
Old 03-27-2011, 07:26 PM
bobdmac bobdmac is offline
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Mein Auto: 2001 540i/6, '90 BMW k75s
Like chief said, take some time to read about the 540's "routine" maintenance. Read this link from the "wiki" about the common issues with E39's, and get an idea of the budget you'll need for the next year to keep it running before you blow your wad on mods.
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  #4  
Old 03-27-2011, 07:58 PM
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bluebee bluebee is offline
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Location: San Jose, California
 
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Mein Auto: 02 BMW 525i M54 auto 130K
I just did the classic /CAI(F3) in the bestlinks to find:

- Which is better, stock or aftermarket cold air intake (1) (2) & a home-made CAI (1) & the general consensus on the effectiveness of an aftermarket CAI versus the stock BMW CAI (1) (2) (3) (4) and of the K&N oiled air filter over the stock air filter (1) & how to reduce the risk of hydro lock (1) (2).
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  #5  
Old 03-28-2011, 12:56 PM
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DominguesE30 DominguesE30 is offline
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Mein Auto: `97 BMW 318is
Keep the original air box. It sucks better, stops sh1t going into your motor and minimizes the chance of sucking up liquids into a place it that doesn't agree with it
the only good note on an aftermarket "pod"/cai is the sound you get. That's all


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  #6  
Old 03-28-2011, 01:34 PM
Joe@Bavarian Joe@Bavarian is offline
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Location: Folsom
 
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Mein Auto: Me - E39 5spd, Wife - E36
The problem with the M62tu is the intake gaskets leak and the cooling system does not last as long as it should.
Buy yourself a new water pump, all cooling hoses, expansion tank & have the radiator flushed. Then replace the expansion tank and the hoses every 60K after that. As long as you don't overheat it, you can get 300K miles out of it.

As for the performance options: A good CAI does not have a under hood filter... It must have the filter positioned under the headlights. This makes it easier to suck up water if your not careful. but you get a true "Cold Air Charge".

A CAI, free flow exhaust, throttle body & chip are ingredients for better performance. without all of them together you wont see much gain.

-Joe
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  #7  
Old 03-28-2011, 01:43 PM
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bluebee bluebee is offline
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Location: San Jose, California
 
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Mein Auto: 02 BMW 525i M54 auto 130K
Quote:
Originally Posted by Joe@Bavarian View Post
without all of them together you wont see much gain
Wow. Thanks Joe. Since your response has additional information, I added a link to here for the bestlinks so that the next person gets your information within five seconds of starting their search.

thanks,
Bluebee

- Which is better, stock or aftermarket cold air intake (1) (2) & a home-made CAI (1) & the general consensus on the effectiveness of an aftermarket CAI versus the stock BMW CAI (1) (2) (3) (4) (5) and of the K&N oiled air filter over the stock air filter (1) & how to reduce the risk of hydro lock (1) (2).
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  #8  
Old 03-28-2011, 01:50 PM
Joe@Bavarian Joe@Bavarian is offline
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Mein Auto: Me - E39 5spd, Wife - E36
Thanks Bluebee.
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