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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 03-14-2010, 06:06 PM   #1
1999black323i
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Cold air intake question?

So i did do some research and talked to mechanics, heres what one told me... dont replace the whole cold air intake but just replace the filter with a K&N one and you should gain about 5 HP..... is this about right? do you guys think i should replace the whole thing? let me know please
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Old 03-14-2010, 06:11 PM   #2
1999black323i
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would this one be good? http://cgi.ebay.com/ebaymotors/1999-...ht_5249wt_1167
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Old 03-14-2010, 06:11 PM   #3
1999black323i
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or this one? http://cgi.ebay.com/ebaymotors/1999-...ht_5249wt_1167
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Old 03-14-2010, 06:12 PM   #4
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or this last one? http://cgi.ebay.com/ebaymotors/1999-...ht_4789wt_1167
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Old 03-14-2010, 06:14 PM   #5
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You don't gain any HP with a CAI, just sound and a dirty MAF
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Old 03-14-2010, 06:18 PM   #6
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Quote:
Originally Posted by gtb323 View Post
you don't gain any hp with a cia, just sound and a dirty maf
+1
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Old 03-14-2010, 06:22 PM   #7
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You don't gain any HP with a CAI, just sound and a dirty MAF
Fixed

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Old 03-14-2010, 06:22 PM   #8
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+1
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Old 03-14-2010, 06:23 PM   #9
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Fixed

My mistake. Thanks
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Old 03-14-2010, 06:31 PM   #10
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it changes the sound? and i guess it doesnt gain hp but it speeds up the process to which you gain speed right? and does it make it louder or what?
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Old 03-14-2010, 06:32 PM   #11
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I believe there is no gain in anything...and yeah it is a little bit louder, you get the sucking in sound. Its not really that cool IMO
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Old 03-14-2010, 06:35 PM   #12
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My mistake. Thanks

No worries boss! My pleasure!

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Originally Posted by 1999black323i View Post
it changes the sound? and i guess it doesnt gain hp but it speeds up the process to which you gain speed right? and does it make it louder or what?
I've had experience with the GruppeM intakes, and it sounds like this:



I think you would enjoy something like that!
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Old 03-14-2010, 06:38 PM   #13
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Buy a used aftermarket exhaust if you just want sound
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Old 03-14-2010, 06:38 PM   #14
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get ebay headers cheaper than that cai and instant HP gain and makes your car loud.
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Old 03-14-2010, 06:38 PM   #15
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^Doesn't sound too bad but I wouldn't shell out hundreds of dollars for it
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Old 03-14-2010, 06:40 PM   #16
1999black323i
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i was looking for performance... they say on the K&N ones they guarantee HP haha, guess they are lieing?
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Old 03-14-2010, 06:40 PM   #17
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+1 for headers if your looking for a significant gain
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Old 03-14-2010, 06:41 PM   #18
1999black323i
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get ebay headers cheaper than that cai and instant HP gain and makes your car loud.
would you mind showing me what to look for, idk much about cars like send me a link of what you are talking about please
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Old 03-14-2010, 06:43 PM   #19
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http://forum.e46fanatics.com/showthread.php?t=571990

Read this, should answer most your questions
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Old 03-14-2010, 06:48 PM   #20
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thanks i read it lol, it helped alot
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