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      11-12-2020, 02:23 PM   #18
evo-mike
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Drives: 2020 X3M, 2016 435i M-Sport
Join Date: Jul 2016
Location: GA

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Oh crap! I just installed my Dinan exhaust last week. This doesn't give me the warm and fuzzies. Drone at idle, faulty springs...
The 900 RPM drone is with the stock non-Comp exhaust systems, not the Dinan. The valve spring issue is with the Dinan muffler though.
I do have a bit of a rattle at idle on stock non comp exhaust. is there any repair kit which I can use to illuminate the rattle noise?
The rattle is most likely from a bad muffler bracket weld. There is a known issue with that so take the car to your dealership and they can fix it for you. Late 2019 production cars were affected by this.
Mine is internal, definitely not an exterior weld or bracket.
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