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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 > exhaust whistle after golf tee mod



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      09-30-2008, 12:40 PM   #1
MIB335
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exhaust whistle after golf tee mod

I tried the "unplug method" in the trunk and started to hear a whistling noise from my rear exhaust almost immediatly. My car is now back to stock and the whistle is still there. Not a big issue but annoying.

Any comments ?
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      09-30-2008, 12:42 PM   #2
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sorry i had to

what exactly did you unplug? the vacuum line or the power line?
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      09-30-2008, 12:50 PM   #3
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Quote:
Originally Posted by jadeddjay View Post


sorry i had to

what exactly did you unplug? the vacuum line or the power line?
it's that wooo hoooooooooooooo....

anyways, you shouldn't be getting a "whistle sound" just by a golf tee mod. check the vacumm lines and do the mod through the tube, not by unplugging it through the trunk.
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      09-30-2008, 12:51 PM   #4
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LOL. power line I did unplug the actuator
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      09-30-2008, 12:54 PM   #5
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and I did not touch the vacuum line ... strange
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      09-30-2008, 12:58 PM   #6
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what does the valve look like in the exhaust? did you plug it bac in correctly to verify that the flap is indeed working?
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      09-30-2008, 01:12 PM   #7
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I will try to check this valve ... and will come back soon
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      09-30-2008, 03:20 PM   #8
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Quote:
Originally Posted by jadeddjay View Post


sorry i had to

what exactly did you unplug? the vacuum line or the power line?
LOL, thats the first thing I thought of when I saw the subject line.
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      09-30-2008, 03:22 PM   #9
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How does the whistle go?

Does it go, "woo woo!" or "WOOO WOOOOOOOOO?"


thats the plug in the E93, should be the same looking for E92

Leave it in means, don't take it out of that compartment, just leave it there
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      10-01-2008, 04:51 AM   #10
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No "who who" but an annoying and continuous "sweeeeeet" at idle. it disappears when WOT
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