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I did the same. Then I had one resonator removed and it made a little difference. Then I dropped in the VRSF downpipe and Dinan midpipe (together). When they started it (cold start) in the shop I about had a heart attack! lol
It took a few days before I absolutely loved it!
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2017 BMW M240i xDrive - Mission Performance Stage 2 and transmission flash, CSF Intercooler, VRSF 4.5" downpipe, Dinan midpipe, BMW M Performance muffler, Agency Power Cold Air Intake. 11.58 @ 116MPH
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