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Discussion Starter · #1 ·
I am interested in buying an intake, but I am not interested in the really loud noise that may come with it.

All my friends with Bimmers don't have any work under the hood.

Do intakes make a honda/ricey type loud noise when installed in a 330? I hate that obnoxious loudness that a lot of cars with intake make. Would there be a way to get the advantages of an intake without that loudness?

I'd like the added performance an intake would provide, but I definitely do not want to make the car much louder than it is. I like the mellow growl it has just fine.


I did a search and found nothing, so all of your help is appreciated.
 

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I can only speak for the GruppeM which sounds nice (ie quiet) at crusing but does emit a nice roar when you open it up.
 

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That honda/ricey type loud noise that you are refering to is a combination of many things. Their small 4 banger engines and tin can exhausts are what's mostly responsible for this annoying sound. With a BMW 3.0L I-6 you'll NEVER have to worry about sounding like a p.o.s. honda.
 

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With a BMW 3.0L I-6 you'll NEVER have to worry about sounding like a p.o.s. honda.
I beg to differ...throw on an Apexi N1 or Cheapo muffler and I guarantee it'll sound ricey..

As far as intake roar...yes, no matter what you do, doing an aftermarket intake will make your intake louder. The engineers design the stock intake to flow somewhat efficiently but be quiet...which is why you have that huge airbox.

Now..as far as a quieter intake...the true cold air systems that keep the filter out of the bay will seem quieter in the car than an underhood...They are farther away from you and won't resonate as well as the filter would if you have it in under the hood.

You really can't get a "quiet" performance intake...other than changing out your stock airfilter for a K&N...but that is essentially worthless.
 

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holy :search:
 

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I have the Conforti CAI. I am not sure if they have one for the 330 yet though :sad:

You will get a nice tone when you step on it and the RPMs go above 4K. Other than that there really is no sound difference with a stock exhaust.

You may here a slight "whistle" noise at certain RPM and throttle posistions (mmm approx 2K and 25% accel). That is due to the increased air flowing through the system. It is definately not the majority of the time though.

 

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i don't recommend it but if you really want to keep your car quiet but improve your intake....then just replace the filter you havenow with a K&N filter...the sound won't change much but you'll prob get like 2 or 3 horsepower out of it. not enough horsepower in my opinion!...oh well, have a nice day everyone
 

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I got the benfer... and to be perfectly honest i really have to listen for the difference in sound... i installed it and no one else knew it was in there lol
 

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in my car all i here is a whistle but when i open her up i here a little noise nothing big, i say go for it it cant hert, but if you go cold air get a wash gate so you cant hert your eng
 

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Save your money and go for the Benfer or ECIS. Benfer is below 200. But if you got the dough go all the way with the Groupe M. It's $600 worth of eye candy.
 
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