Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > 5 Series DIY

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!

Thread Tools Display Modes
Old 03-10-2005, 08:06 AM
gregruby gregruby is offline
Registered User
Location: Seattle
Join Date: Mar 2005
Posts: 3
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!!!

Reply With Quote
Old 03-10-2005, 08:12 AM
chivas's Avatar
chivas chivas is offline
You Lick It, You Own It
Location: Under The Bridge
Join Date: Aug 2002
Posts: 14,417
Send a message via ICQ to chivas Send a message via AIM to chivas
Mein Auto: 98 540i/6



Boo-Ya-KA!!! Respect....
Reply With Quote
Old 03-10-2005, 09:40 AM
gregruby gregruby is offline
Registered User
Location: Seattle
Join Date: Mar 2005
Posts: 3
Mein Auto: 1992 525i
Right on!!! That should be helpful!!! Do you think I'll actually notice a performance increase though????
Reply With Quote
Old 03-10-2005, 11:27 AM
jvr826's Avatar
jvr826 jvr826 is offline
Is it Trackday yet?
Location: In the woods. Santa Cruz County, CA
Join Date: Apr 2002
Posts: 8,975
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.
Jeff R.
Golden Gate Chapter BMW CCA - Autocross - Come Join Us!

"You drive like old people $#@%... slow and sloppy!" - George Carlin
Reply With Quote

See More Related BMW Stories

Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > 5 Series DIY
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Cold Air Intake barcus E46 (1999 - 2006) 20 02-03-2005 11:15 PM
Heater blowing cold air (lost patience) twm67 X5 E53 (1999 - 2006) 7 01-31-2005 01:05 PM
Active Autowerke Cold Air Intake for E36 M3 M3xracer52 Classifieds 0 09-04-2003 10:26 PM
FS: BMP 318is Cold Air Intake BMW MotorSport Classifieds 0 06-12-2003 02:33 AM
BenFer Performance Cold Air Intake Group Buy... Killer Junior 3 Series & 4 Series 0 12-28-2002 10:42 PM

All times are GMT -7. The time now is 05:29 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
© 2001-2015 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms