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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 question



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      01-05-2010, 01:04 PM   #1
john boxter
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exhaust question

hey i changed the exhaust on my car to an aftermarket one then i switched it back to stock and my stock one now for some reason sounds a lil louder/deeper than it was before. I was thinking by changing the exhaust do i autmatically change something else (i.e. golf tee mod or that vacuum mod people talk about? or any other ideas why this might be so?
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      01-05-2010, 04:29 PM   #2
SV Concepts II
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might just be your imagination...

but yes you could have disabled the butterfly valve in the exhaust that controls the noise...
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      01-10-2010, 11:37 PM   #3
Sparkling G
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what exhaust did you have before? Maybe you are in goft Tee mod cuz the installer didn't plug in the rubber hose?
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      02-09-2010, 05:00 PM   #4
john boxter
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yess where can i find that rubber hose and where do i plug it in? thanks alot!
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      02-09-2010, 05:13 PM   #5
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Quote:
Originally Posted by john boxter View Post
yess where can i find that rubber hose and where do i plug it in? thanks alot!
It's on the drivers side at the rear bumper outlet for the exhaust. Under the car...
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      02-09-2010, 05:41 PM   #6
john boxter
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thats perfect thank you
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      02-09-2010, 06:01 PM   #7
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or you could've just searched for the golf tee mod DIY's and reversed it
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