Holes come in the plastic.  Not too sure how accurate the holes will be for you on your quad.  On the black plastic, I had to pull the rear plastic towards the front by 1/4 to 1/2" and redrill the holes.  If I remember correctly, the front plastic was accurate.

ok. No problem.  I do have an older set now that I got with a quad I bought and I put the maier rear on with the factory front and for a rider I really don't have any complaints about how they fit. I think the Maier fender is thicker than the OEM and seems more durable.  Someone drilled the holes in the wrong spot on these thats why I asked if they were pre drilled now or not.   I took off my OEM rear fenders because its something you can't buy anymore and I want to save them.....Can buy new Maier fenders anytime.