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Old 12-28-2013, 10:47 PM   #1
<3MyE36
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Question about cold air intakes?

Hello MaX members! So I've had my cold air intake (Carbonio) bought from Empowerd installed on my car (93' 320i) for some time now and it sounds amazing, recently my brother and I installed the same type of intake on his car (we bought two of the same one) but on his car (97' 328i) it sounds exactly the same as it did with the stock air box, did we do something wrong? Or does anyone have any idea what the problem could be? As always, thank you for your help guys!

P.S. When we installed it on my car we didn't read the manual, just installed it started it up and revved it right away, but for my brother's we read the manual, installed it, started it up let it sit for ten minutes untouched and then we revved it.


-Rich

Last edited by <3MyE36; 12-28-2013 at 10:53 PM.
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Old 12-28-2013, 11:31 PM   #2
Blackedout95
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Are you trying to lose hp? lol
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Old 12-29-2013, 12:41 AM   #3
<3MyE36
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Of course ! Lool just kidding, no I just figured it would be better than the stock airbox, and some people did report noticing better throttle response so I gave it a shot.

-Rich
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Old 12-29-2013, 01:59 PM   #4
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Bump!
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Old 01-02-2014, 05:56 PM   #5
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Well, considering that they are two completely different motors, they will sound different from one another. One being an M50B20, and the other being an M52B28;That being said, the intake should sound differently if you remove the airbox, regardless of engine size since the airbox muffles the sound of the air intake. It doesn't make sense to me for the carbonio intake would sound the same as a stock airbox.
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Old 01-02-2014, 08:26 PM   #6
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Quote:
Originally Posted by 1bmw1 View Post
Well, considering that they are two completely different motors, they will sound different from one another. One being an M50B20, and the other being an M52B28;That being said, the intake should sound differently if you remove the airbox, regardless of engine size since the airbox muffles the sound of the air intake. It doesn't make sense to me for the carbonio intake would sound the same as a stock airbox.
Well actually my car has the M50TUB20 with vanos, and yeah we still haven't figured out what could be preventing the Carbonio intake from working properly on my brother's car, like I said we did follow the instruction manual the second time around, when installing.

-Rich
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Old 01-03-2014, 06:36 PM   #7
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When I installed the Carbonio intake from Randy in my '99 E36 328iC (M52) it was a LOT louder than the stock airbox.

When I installed another Carbonio intake from him in my '04 E46 330ci (M54) it was only a bit louder than the stock airbox, with the biggest difference and really only very noticable being above 5,800rpm.

I guess it depends on the engine, really. That and I could hear a lot more noise with a convertible with the top down than the much more refined E46 with an actual roof, haha.
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Old 01-03-2014, 07:16 PM   #8
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When I installed it in my E46 325Ci, I followed all the steps in the manual (let it sit for ~10 min) to get the computer to adjust to the increased air flow. After that it sounded amazing and made a sweet whooshing sound when you hit the gas.
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Old 01-03-2014, 10:09 PM   #9
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Quote:
Originally Posted by damonchoy View Post
When I installed the Carbonio intake from Randy in my '99 E36 328iC (M52) it was a LOT louder than the stock airbox.

When I installed another Carbonio intake from him in my '04 E46 330ci (M54) it was only a bit louder than the stock airbox, with the biggest difference and really only very noticable being above 5,800rpm.

I guess it depends on the engine, really. That and I could hear a lot more noise with a convertible with the top down than the much more refined E46 with an actual roof, haha.
Quote:
Originally Posted by vic325ci View Post
When I installed it in my E46 325Ci, I followed all the steps in the manual (let it sit for ~10 min) to get the computer to adjust to the increased air flow. After that it sounded amazing and made a sweet whooshing sound when you hit the gas.
I understand, but they are both E36's granted that one motor is the M50TUB20 (mine which sounds amazing) and the other is a M52B28 (my brother's with no difference in sound at all) it just doesn't make sense to me that one sounds so great while the other one is the exact same as mine but sounds exactly the same as it did with the stock airbox on my brother's. My only guess is that maybe the Intake tube isn't deep into air filter enough or that the flap in the throttle body isn't opening enough when accelerating.

-Rich
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Old 01-04-2014, 12:06 PM   #10
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It's the intake manifold. The OBD1 320's manifold, while tiny, is more in the shape of the OBD1 B25/B30 manifold than the OBD2 328 piece. The "M50 manifold" makes open air intakes noticeably louder.
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Old 01-04-2014, 12:12 PM   #11
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Quote:
Originally Posted by Mystikal View Post
It's the intake manifold. The OBD1 320's manifold, while tiny, is more in the shape of the OBD1 B25/B30 manifold than the OBD2 328 piece. The "M50 manifold" makes open air intakes noticeably louder.
but is it possible for the carbonio to sound stock?
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Old 01-06-2014, 11:39 PM   #12
<3MyE36
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Quote:
Originally Posted by Mystikal View Post
It's the intake manifold. The OBD1 320's manifold, while tiny, is more in the shape of the OBD1 B25/B30 manifold than the OBD2 328 piece. The "M50 manifold" makes open air intakes noticeably louder.
Okay that makes sense, Thanks Jay!

-Rich
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Old 01-04-2014, 12:13 PM   #13
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Yes.
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