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Hi bros

Just upgraded my W204 C250 coupe with a Piecha exhaust.

I expected it to have more noise and louder, but there also seem to be more rattling and vibrations. This is especially at low revs.

What can be the possible issues? Engine mount?

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More like exhaust mount ! Or spacing issue.

Suggest to visit Man Exhaust and let them have a look.

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On ‎2‎/‎27‎/‎2018 at 5:55 PM, tanwill said:

More like exhaust mount ! Or spacing issue.

Suggest to visit Man Exhaust and let them have a look.

Thanks bro. Can elaborate and explain?

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21 minutes ago, Kenyeokl said:

Thanks bro. Can elaborate and explain?

Car engine and the exhaust sound vibrates, it gets transfer to the engine/ exhaust system.

Thats why you see exhaust system has flex pipe and rubber mounting.

Some time, adjustment (welding, reposition, bending, reshape of cover....etc) needs to be made for after market exhaust system due to under carriage spacing and clearance (Rattling is not normal, and usually means something is in contact).

Exhaust specialist should be able to resolve the vibration for you.

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