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      08-31-2016, 10:16 AM   #89
bri1042
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Drives: 2021 IOMG M3 6MT
Join Date: Mar 2013
Location: Portland, OR

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Regarding the 428 question:

The link below shows a 328 exhaust, which should be the same as a 428. A flap actuator is on the parts list.

https://www.realoem.com/bmw/enUS/sho...diagId=18_0974
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