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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 05-31-2012, 10:25 PM   #1
mattyschwarz1
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Best Cold Air For A 325ci?

hey guys! what's the best cold air intake that would be able to fit my 03 325ci? i'm looking at the K and N 57series. Just wondering if anyone has any opinions or suggestions.
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Old 06-01-2012, 08:34 AM   #2
Mr.Makeveli
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I'd go with afe stage 2 cold air intake(bavauto.com)
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Old 06-01-2012, 10:02 AM   #3
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I'm a big fan of aFe intakes. The Pro 5 R is one f the more popular ones currently for your car, I have it along with the stage 2 and a few other HERE.


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Old 06-06-2012, 08:00 PM   #4
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What kind of performance gain if any can I expect from Pro 5 R? How would this compared to BMW's performance air intake. FYI- I have a 325XI, auto.

Last edited by septalrage; 06-06-2012 at 08:05 PM.
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Old 06-06-2012, 08:33 PM   #5
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Tube intake is the best for power. Dinan tube intake or something like cosmos intake.

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Old 06-06-2012, 08:36 PM   #6
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I have the kn 57, car sounds better, better throttle response. I believe 11 hp gain on my 04 325Ci.
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Old 06-06-2012, 08:38 PM   #7
septalrage
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Can most of these intakes be self installed at home? Any special tools needed?
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Old 06-06-2012, 09:26 PM   #8
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took me like 30 - 40 minutes, the tools you need are in your trunk.
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Old 06-06-2012, 09:48 PM   #9
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Originally Posted by darksideracer69 View Post
Tube intake is the best for power. Dinan tube intake or something like cosmos intake.

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+1

The long tube will deliver cooler air, and smoother airflow. The short intake, causes the air to be more turbulent.

Very easy DIY.
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Old 06-06-2012, 09:57 PM   #10
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I have the kn 57, car sounds better, better throttle response. I believe 11 hp gain on my 04 325Ci.


I need a dyno for this

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Old 06-06-2012, 10:48 PM   #11
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For a true C.A.I go with the Cosmos Racing V2 Cold Air Intake. I have it along with some other guys it's amazing. Big in the E36 scene too
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Old 06-07-2012, 01:45 AM   #12
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tube intake for sure, unless you want just sound
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Old 06-07-2012, 05:54 PM   #13
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For a true C.A.I go with the Cosmos Racing V2 Cold Air Intake. I have it along with some other guys it's amazing. Big in the E36 scene too
You have a picture of what this looks like in an E46 engine bay?
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Old 06-07-2012, 06:01 PM   #14
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aFe Stage 2 might be your best bet here. Great price, great noise it makes, and it looks amazing as well. Great news about AFE is that everything is made in the United States, including their filter materials, all the molds of course all R&D is in house, all in their Southern California location. Take a look here, but aFe is certainly a great solution:


aFe Stage 2 Intake BMW E46 323/325/328/330
http://www.modbargains.com/aFe-Stage...25-328-330.htm

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Old 06-07-2012, 06:08 PM   #15
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Stock intake is best intake

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Old 06-07-2012, 07:21 PM   #16
septalrage
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Does anyone have actual data on performance increase with any products? Comments like try this, or stock is better are confusing at best, and misleading at worse.
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Old 06-07-2012, 08:08 PM   #17
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There's a dyno thread

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Old 06-12-2012, 02:52 PM   #18
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I heard blowing into your engine bay really get the car movin...

In all seriousness, SEARCH please. I don't mean to be a dick over the forums of all places, but there have been countless threads on this. I don't care if you're a new member or if you've been around since the forums came out, try and get information for yourself before asking for help via threads cause it just makes us want to make fun of you haha. The most OPTIMAL intake would be a long tube intake that goes down to the brake duct. Anything else, just keep your stock intake because it will barely make any power difference. If you're looking for power as you said in a post somewhere above mine, get the dinan long tube intake or the cosmos racing intake; anything else will just be a "waste" of money because you "won't feel anything."

PLEASE search next time though before you ask questions.
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Old 06-18-2012, 10:44 AM   #19
mattyschwarz1
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Went with the K&N. Nice response and sound to it. Helps me a little more on gas as well haha. Also in response to the last post on the thread, that's nice. The point of the forums is to talk and ask questions and tips. I did do research but, as I had stated, I just wanted some opinions. I'll try blowing some extra air into my engine bay and I'll let you know how that works.
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Old 06-18-2012, 11:17 AM   #20
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Just go get it tuned and get ready for that extra pull !
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