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      05-13-2012, 10:09 AM   #9
4DRSpeed
TWNEGOS
 
Drives: 07 335i 6spd White/Red
Join Date: Oct 2011
Location: Knoxville, TN

Posts: 105
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There is wastegate coding you can do before having the dealer install new wastegates. It's for 07/08 models only.

I did it to my car and it quieted it down a lot. If the rattle comes back over time then wastegates would need to be done.
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