BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST
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dpf removed whistle noise
| 12-21-2022, 11:26 AM | #1 |
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dpf removed whistle noise
Hi
F30 335d My car seems to have had the dpf removed as I can hear the turbo whistle while revving the engine. Not a fan of the noise so aside from buying and fitting a new dpf which is expensive are there any other options to reduce the whistle noise? |
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