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5 Series DIY
Knowledge Is Power! ~ The place for do-it-yourself threads on a variety of topics. Start a thread describing a particular job (oil change, cooling system overhaul, brakes, shocks and springs, etc.) or search for one you need help with!

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  #1  
Old 03-10-2005, 09:06 AM
gregruby gregruby is offline
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Location: Seattle
 
Join Date: Mar 2005
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Mein Auto: 1992 525i
Cold Air Intake help

I noticed that on my 525i the air intake box is quite restrictive. Does anyone have some inexpensive suggestions as to how to make it more free flowing ??? Can I just leave the front part of the box off without damaging anything??? Also, any links or suggestions on converting to cold air intake? Thanks!!!

Greg
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Old 03-10-2005, 09:12 AM
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chivas chivas is offline
You Lick It, You Own It
Location: Under The Bridge
 
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Mein Auto: 98 540i/6
http://www.bmwtips.com/tipsntricks/h...iles/HDCAI.htm

then....

http://www.540i6.com/heatshield.html

Boo-Ya-KA!!! Respect....
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Old 03-10-2005, 10:40 AM
gregruby gregruby is offline
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Location: Seattle
 
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Mein Auto: 1992 525i
Right on!!! That should be helpful!!! Do you think I'll actually notice a performance increase though????
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Old 03-10-2005, 12:27 PM
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jvr826 jvr826 is offline
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Location: In the woods. Santa Cruz County, CA
 
Join Date: Apr 2002
Posts: 8,882
Mein Auto: 05 330ci 6MT
I can't comment on the benefit for an E34, but on my E39 I definitely have increased throttle response with my Benfer Performance CAI installed. The stock intake is a really funky shape with all kinds of twists and bends in it and varying widths along the path to the filter. The benfer puts the filter behind the front bumper and has a direct path, same diameter, right to the MAF. And it produces an intoxicating growl at WOT.

More HP? I am not sure, but my butt dyno likes it alot. Installing it made the fun factor go up a notch, definitely.
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