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Technical Topics B58 6-Cylinder Turbo Engine / Drivetrain / Exhaust Modifications 330i Dinan Axleback rattling/squeaking noise

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      12-26-2023, 11:47 PM   #1
330ida
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330i Dinan Axleback rattling/squeaking noise

Hey,

I just got a Dinan Axleback installed on my 2024 330i, and realized that there is a rattling/squeaking sound when the valves are closed. There is no noise when the valves are open; only present when it’s closed. I’ve attached a video of the situation with sound. Is this normal? Should I go back to the exhaust shop and get it fixed? Thanks in advance!

video
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      12-27-2023, 08:55 AM   #2
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That is one of the strangest noises I've heard coming from an exhaust lol. Definitely bring it back, sounds like the valve isn't seated correctly.
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      12-28-2023, 01:53 AM   #3
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FYI, this is in the B58 section. Mods can you move to B48 pls?
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      12-29-2023, 06:58 PM   #4
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Dinan exhaust valves known to rattle after some time. Got my muffler assembly replaced under warranty a while back. Doing the same thing again. Only happens at cold start though, so it’s bearable this go-round
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      03-22-2024, 09:30 PM   #5
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Quote:
Originally Posted by 330ida View Post
Hey,

I just got a Dinan Axleback installed on my 2024 330i, and realized that there is a rattling/squeaking sound when the valves are closed. There is no noise when the valves are open; only present when it’s closed. I’ve attached a video of the situation with sound. Is this normal? Should I go back to the exhaust shop and get it fixed? Thanks in advance!

video
Hey! I just installed mine today and I’m having the same issue with valves open/closed. Were you able to fix it?
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      03-23-2024, 09:54 AM   #6
330ida
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Quote:
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Hey! I just installed mine today and I’m having the same issue with valves open/closed. Were you able to fix it?
I brought it back to the shop that installed, and got a replacement. However, the replacement also had the same exact issue, so now I am waiting for a refund.
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      03-23-2024, 10:44 AM   #7
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I brought it back to the shop that installed, and got a replacement. However, the replacement also had the same exact issue, so now I am waiting for a refund.
That’s unfortunate :/, thank you for sharing!
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      03-23-2024, 01:00 PM   #8
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i wonder if its something with OP's car or a defective batch from Dinan.
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