Downpipe leak? *video*

k_mann · 07-16-2024, 07:55 PM

Curious if anyone has experience on normal noises for a catless downpipe. Currently running CTS catless

With the windows down near curbs or walls in comfort, with throttle modulation there’s a somewhat whoosh or hiss. Is that just the wastegate modulating or a potential leak?

https://youtube.com/shorts/kG9IVhpU9...YSdr8zoaY502-_

kiNG1n · 09-16-2024, 11:40 PM

Did you figure it out? my car makes the exhaust same noise almost feels like its a leak.

k_mann · 10-31-2024, 04:41 PM

Quote:

Originally Posted by kiNG1n

Did you figure it out? my car makes the exhaust same noise almost feels like its a leak.

From what I can see and feel its not a leak, just the nature of going catless!

07-16-2024, 07:55 PM	#1
k_mann Lieutenant 392 Rep 451 Posts Drives: 2018 M2 Join Date: Mar 2016 Location: Kansas City iTrader: (0) Garage List 2018 BMW M2 [10.00]	Downpipe leak? video Curious if anyone has experience on normal noises for a catless downpipe. Currently running CTS catless With the windows down near curbs or walls in comfort, with throttle modulation there’s a somewhat whoosh or hiss. Is that just the wastegate modulating or a potential leak? https://youtube.com/shorts/kG9IVhpU9...YSdr8zoaY502-_ __________________ Current: 2018 M2 DCT Previous: 2011 E92 M3, 2007 E92 328xi Insta: @kmannc
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09-16-2024, 11:40 PM	#2
kiNG1n New Member 4 Rep 5 Posts Drives: BMW F87 M2 Join Date: Feb 2023 Location: San Diego iTrader: (0)	Did you figure it out? my car makes the exhaust same noise almost feels like its a leak.
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