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      05-09-2015, 11:30 AM   #1
AFineMan
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Help Identifying This Sound 228XI

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Hey All

For some I know this will be hard to believe (since I've owned the car since 3/13) but I just drove using Sport + mode and heard a strange sound.

I had to pull out on a street here in NH, the speed limit is 55 and had lots of traffic. I switched the car into Sport + and booted it

The sound came when the engine was revving down to shift gears, I'm assuming it is the excess pressure of the turbo being dumped. I never heard this sound before and wanted to check with those who know, it is a cool sound though

Thanks ASM
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      05-09-2015, 11:46 AM   #2
Jasond13
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Quote:
Originally Posted by AFineMan View Post
Hey All

For some I know this will be hard to believe (since I've owned the car since 3/13) but I just drove using Sport + mode and heard a strange sound.

I had to pull out on a street here in NH, the speed limit is 55 and had lots of traffic. I switched the car into Sport + and booted it

The sound came when the engine was revving down to shift gears, I'm assuming it is the excess pressure of the turbo being dumped. I never heard this sound before and wanted to check with those who know, it is a cool sound though

Thanks ASM
Its normal, your waste gate doing it's job. Put an intake on it and you will really here it work.
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      05-09-2015, 02:38 PM   #3
sakitnyatudisini
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Originally Posted by Jasond13 View Post
Its normal, your waste gate doing it's job. Put an intake on it and you will really here it work.
agreed with you!
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      05-09-2015, 10:15 PM   #4
mfourn20
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I have an overpass near my house and when I drive home I hammer on it under it. I always let off right before I get out so the pssshhhh ecos
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