10" Subwoofer with Fiberglass Enclosure
I figured I'd share some pictures for anyone who wants to attempt to build a fiberglass sub enclosure for the X1.
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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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