dzus fasteners are awesome for stuff like this. but if you want more looks then id go with molding tape and or self tappers on the inner sides of the fender wells, with a couple on the bottom by the pinch weld
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if you havent been in a small plane its worst, cause your eyes and brain say we are moving and your body says oh no we are not. eyes and brain go asshole we are moving, cant you see? body says fuck you we are not moving at all. so they fight and fight and eventualy your body says, you know what fuck you brain, see if you can stop this!! then you throw up.