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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > I want to hear my turbos! Any simple mods?



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      03-22-2007, 06:54 PM   #1
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I want to hear my turbos! Any simple mods?

I'm sick of trying to accelerate past cars parked on the side of the street so the sound can reverberate back to hear my turbos spool up.

Any simple ways to increase the audible presence of the two turbos under the hood?

And I would prefer no BOV's..
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      03-22-2007, 06:56 PM   #2
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Get a foam type air filter, you can even make it yourself. Remove the top cover air filter plastic, you should be able to heard them.

Carlos
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      03-22-2007, 06:57 PM   #3
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INTAKE + DOWN PIPE/STRAIGHT PIPES. A lot of my friends have it on their STI's it makes it sound so much better. I wish companies starting making intakes for the 335's.
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      03-22-2007, 07:07 PM   #4
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Quote:
Originally Posted by jthurs View Post
INTAKE + DOWN PIPE/STRAIGHT PIPES. A lot of my friends have it on their STI's it makes it sound so much better. I wish companies starting making intakes for the 335's.
You can't compare the STI. I had a WRX from sep 2002 to sep 2004 and it uses a huge black plastic silencer on the front right fender(if you are seating on the drivers seat).makes a whole lot more nosie than average when the silencer is remove.

I am not saying the STI's are loud with the air filter, I totally agree with you on your statements, I am saying that there is a big difference between these two cars suck the air to their turbos.

The air filters on the WRX and STIs makes a whole lot more noise than an average turbo car.

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      03-23-2007, 07:57 AM   #5
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just get a procede, you can really hear the turbos.
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      03-23-2007, 09:03 AM   #6
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Quote:
Originally Posted by jthurs View Post
INTAKE + DOWN PIPE/STRAIGHT PIPES. A lot of my friends have it on their STI's it makes it sound so much better. I wish companies starting making intakes for the 335's.
and a Blow Off Valve
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      03-23-2007, 09:10 AM   #7
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Quote:
Originally Posted by nine4surfah View Post
and a Blow Off Valve
::read original post::

There is no downpipe created for this car yet and neither is a Air Intake.......both of those would create a louder turbo noise, on top of that, you should just wait for a TURBO BACK exhaust and that will really give you the sound you are looking for, just be patient
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      03-23-2007, 09:31 AM   #8
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Quote:
Originally Posted by 335boosted2Dmax View Post
::read original post::

There is no downpipe created for this car yet and neither is a Air Intake.......both of those would create a louder turbo noise, on top of that, you should just wait for a TURBO BACK exhaust and that will really give you the sound you are looking for, just be patient
hehehe......oops

try this then... http://www.takakaira.co.jp/accessori...ightpager.html

http://www.takakaira.co.jp/accessori...ager/type2.wav
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      03-23-2007, 09:37 AM   #9
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ROFL
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      03-23-2007, 10:35 AM   #10
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Quote:
Originally Posted by Evo8MRto335I View Post
You can't compare the STI. I had a WRX from sep 2002 to sep 2004 and it uses a huge black plastic silencer on the front right fender(if you are seating on the drivers seat).makes a whole lot more nosie than average when the silencer is remove.

I am not saying the STI's are loud with the air filter, I totally agree with you on your statements, I am saying that there is a big difference between these two cars suck the air to their turbos.

The air filters on the WRX and STIs makes a whole lot more noise than an average turbo car.

Carlos
Did you just want to rag on the WRX/STi or were you trying to say something else and couldn't do it clearly? 'Cause right now your post looks like a total downer on the STi, and is completely confusing with no apparent point otherwise

Anyway, yes, a free-flowing intake (complete intake, not just an air filter) and a complete open exhaust would do the trick. But like has been mentioned, a full open exhaust isn't available for the 335i yet. I do understand the 335i has a small silencer on the intake that can be removed (do a search, I think it was in the DIY section) that would increase some of the intake noise. But always your biggest improvement to turbo spool noise will be an open exhaust.

I don't understand how a BOV would make any difference in turbo spool noise.

- LC
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      03-23-2007, 10:52 AM   #11
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Quote:
Originally Posted by 335boosted2Dmax View Post
::read original post::

There is no downpipe created for this car yet and neither is a Air Intake.......both of those would create a louder turbo noise, on top of that, you should just wait for a TURBO BACK exhaust and that will really give you the sound you are looking for, just be patient
There will be soon..... :rocks:
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      03-23-2007, 10:55 AM   #12
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Lost cosmonaut. ^^no, that is not what I was saying. Also I don't know how you even think I am trying to downgrade a Subaru WRX/STI. No reason for .

I was just saying that removing the silencer on the front fender of the WRX makes the turbo sounds much much more.

Carlos
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      03-23-2007, 11:18 AM   #13
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Quote:
Originally Posted by Evo8MRto335I View Post
Lost cosmonaut. ^^no, that is not what I was saying. Also I don't know how you even think I am trying to downgrade a Subaru WRX/STI. No reason for .

I was just saying that removing the silencer on the front fender of the WRX makes the turbo sounds much much more.

Carlos
Ahhhh OK I get 'cha now. I miss the turbo sound on my STi

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      03-23-2007, 11:24 AM   #14
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just go live in a parking garage, i admit i like to turn the radio down when i park at school so i can listen, though im not keen on having that 100% of the time
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      03-23-2007, 12:20 PM   #15
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Remove your hood, simple and free.
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      03-23-2007, 03:09 PM   #16
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Quote:
Originally Posted by Lost Cosmonaut View Post
I miss the turbo sound on my STi

- LC
same here. when i drive the 335 around, i cant hear the turbo nor the engine which makes it too refine for me.

it really feels much more like a race car especially with the turbo sound. alittle more raw.
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      03-23-2007, 04:10 PM   #17
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http://www.sonictechnology.com/superear.htm
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      03-23-2007, 10:43 PM   #18
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Originally Posted by kujo View Post
There will be soon..... :rocks:
You sir are a fkn tease
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      03-24-2007, 12:27 AM   #19
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Just open your air box take your air filter out and leave it open and you will hear the spooling of the turbos, not the mention a "BOV" sound when you take your foot off the gas (poor mans BOV) lol. I did it on my Evo the first day i got it since i didnt have any mods for it yet, i only left it like that for about 5 min tho it was just for fun.
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      03-24-2007, 12:29 AM   #20
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Quote:
Originally Posted by AW335TT View Post
Just open your air box take your air filter out and leave it open and you will hear the spooling of the turbos, not the mention a "BOV" sound when you take your foot off the gas (poor mans BOV) lol. I did it on my Evo the first day i got it since i didnt have any mods for it yet, i only left it like that for about 5 min tho it was just for fun.
Uuuhhhhmmmmm...

Oooh ooh! Make sure you drain all the oil out too. It's really thick and it robs alot of performance off.

- LC
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      03-24-2007, 04:45 AM   #21
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go into the idrive menu and set the little diamond button on the steering wheel as a radio mute button.

Push that button any time you want to hear the turbos.

Honestly, my car is bone stock, and I can always hear the turbos when the radio is off. Of course, the turbos can't be heard from a mile away, but WTF, this is a BMW, not some boy racer ricer car with a park bench on the trunk and neon lights underneath.
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      03-24-2007, 04:58 AM   #22
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downpipe and open exhaust it what really makes the turbo noise...intakes give you that sucking noise
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