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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 > Ar Downpipes Noise?



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      09-18-2009, 04:44 PM   #1
john boxter
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Ar Downpipes Noise?

hey guys i am about to purchase ar downpipes my concern is noise? i love the silence of the cabin inside will i sacrifice that all the time even when driving conservatively? please let me know what you guys think

Thanks
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      09-18-2009, 04:46 PM   #2
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2007 335i  [5.00]


Please take a look at my review just half a page below....I wrote a lot about my sound impressions.
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      09-18-2009, 07:08 PM   #3
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I'd say the tone gets a bit more aggressive, but does not get louder (much, if at all). You'll definitely be able to hear the turbo whine a bit more (good), but you'll also hear the wastegates (annoying if yours happen to be a bit loose ).
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      09-18-2009, 07:10 PM   #4
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hit up a local meet and hope someone has DP's but I have a full exhaust and catless dp's and think its quiet once the car is warm!!
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      09-18-2009, 10:27 PM   #5
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if you keep the stock exhaust, its only slightly louder
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      09-18-2009, 11:28 PM   #6
john boxter
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i do plan on keeping the stock exhaust so you think i will not mind the extra noise? can i still have a relatively quiet cabin? and on cruise control on the highway will it sound identical to stock?
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      09-18-2009, 11:57 PM   #7
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Quote:
Originally Posted by john boxter View Post
i do plan on keeping the stock exhaust so you think i will not mind the extra noise? can i still have a relatively quiet cabin? and on cruise control on the highway will it sound identical to stock?
identical no, but on cruise w low load conditions you wont notice much difference at all
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      09-19-2009, 12:01 AM   #8
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identical no, but on cruise w low load conditions you wont notice much difference at all
exactly
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      09-19-2009, 12:06 AM   #9
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ok but there will stilll be that noticable note there on the highway for hours huh
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      09-19-2009, 12:51 AM   #10
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Quote:
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ok but there will stilll be that noticable note there on the highway for hours huh
im trying to tell you no, the truth is that your wife/girlfriend wont notice it, but you probably will be able to hear a SLIGHT difference under cruising conditions.

Just do it, you won't regret it.
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      09-19-2009, 09:58 AM   #11
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ya thats what scares i like to drive alot i go far places on the highways and i cant have a solid note for hours you know what i mean is this not for me then i wish someone was local in albany new york who can show me what it sounds like
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      09-19-2009, 10:44 AM   #12
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Quote:
Originally Posted by john boxter View Post
ya thats what scares i like to drive alot i go far places on the highways and i cant have a solid note for hours you know what i mean is this not for me then i wish someone was local in albany new york who can show me what it sounds like
There is zero drone with the stock cat-back.
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      09-19-2009, 11:02 AM   #13
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but added noise at cruising speed yes right? that is my concern i do not know how to define drone i just dont want a loud background noise when im driving will i suffer from that sorry to keep asking questions i just need someone who has it to tell me thank you
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      09-19-2009, 11:23 AM   #14
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Drone is basically loud background noise. When you are cruising, you will not be able to tell any difference from stock.
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      09-19-2009, 11:30 AM   #15
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ok thank you i will purchase it monday then if anybody disagrees with him please tell me before i make my decision thank you
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      09-19-2009, 02:11 PM   #16
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ok thank you i will purchase it monday then if anybody disagrees with him please tell me before i make my decision thank you
get them....please
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      09-20-2009, 03:22 AM   #17
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Jezuz... I can't believe we actually had to convince someone to get DPs...
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      09-20-2009, 04:01 AM   #18
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If you don't like them you can sell them to me!
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      09-20-2009, 04:29 AM   #19
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Jezuz... I can't believe we actually had to convince someone to get DPs...
ahahahahaha +1
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