Hi i just received my five axis kit and i was reading it through and while reading i realized they gav eme a xd installation guide. I was looking at the side skirts and i was wondering if i needed to screw in the screw holes or not because there are no premade wholes on the car.

 

first make sure that its a xB2 kit. it would suck to find out that they sent you a xD or tC kit...
as for the side skirts you should use screws to hold them in. its just that extra security. 3M tape is good but not perfect