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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N55 Turbo Engine / Drivetrain / Exhaust Modifications > PPK with MPE
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      09-26-2014, 09:57 PM   #1
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PPK with MPE

How many of you with PPK and MPE still hear the turbo whistle? I have to pay attention really hard to hear it now, the exhaust drowns it out. Not complaining just wondering if this is what everyone is observing
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      09-27-2014, 02:28 AM   #2
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I actually hear it better now with the windows rolled down.
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      09-27-2014, 04:29 AM   #3
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I still ear it but I have the #339 MPE... Next week I'll replace it with #340 and I think I won't ear it anymore
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      09-27-2014, 05:03 AM   #4
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Strange. Yesterday that's when I was like hey, where is my whistle? I know on my 13 which had PPK and no MPE I could always hear it, even when I wasn't paying attention. On this car which had both from the time I picked it up I can barely remember hearing it. I had to pay extra attention to pick it up. I will check again this weekend to see if maybe it's really there and I had been paying more attention to the exhaust.

An alternate theory may be the engine sound is being piped in and that's drowning the whistle. Please lord let that not be the case,
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      09-27-2014, 07:58 AM   #5
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I can't remember the last time I heard mine. Overall this combination of MPPK/MPE/8AT/xDrive is subjectively the best drivetrain I've had.
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      09-27-2014, 12:12 PM   #6
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I have MPPK and Borla s-type (which is louder than MPE), and I still hear the whistle when I step down on it.
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      09-27-2014, 12:36 PM   #7
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Yeah I just listened to it. It's there but it's very muted now. It's not worth paying attention to anymore since there is so much more sounds coming from the n55 and MPE.

It will not be missed
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      09-28-2014, 12:19 PM   #8
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Next week I'll replace my #339 MPE with #340 MPE, at least!
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      09-28-2014, 12:22 PM   #9
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I can hear it with windows down...not with windows up.
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      09-28-2014, 12:24 PM   #10
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Quote:
Originally Posted by Gio72
Next week I'll replace my #339 MPE with #340 MPE, at least!
I am very satisfied with the 340. It's broken in and it's exceeded my expectations
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      09-28-2014, 12:26 PM   #11
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Quote:
Originally Posted by vanbmw
I can hear it with windows down...not with windows up.
On my 13 which did not have MPE but had PPK I could always hear the whistle. It's just odd that now I have to pay attention in order to hear it. Not a big problem though as long as it's there when I need it
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