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      04-23-2014, 07:10 AM   #25
RyanSoundLab
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Drives: BMW 2013 X3 2.8i Red
Join Date: Apr 2014
Location: Arlington VA

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The rails come with a full length rubber gasket, so they fit snugly into the slots. But the real sealing seems to be done by a rubber washer around each of the hold-down bolts where they go through the body. They squeeze up against the hole area as you tighten the nuts from the inside and (hopefully) will keep out the rain. We'll see over time - haven't been out in the rain or a car wash yet!
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Originally Posted by ///M3PIMP View Post
Nice work Ryansoundlab!!!!!
Do the rails have some sort of waterproof gasket to seal the holes or did you add any sealant to them?
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