For this you would need to go with the 14" flaps and brackets. This will give you an offset so the tires do not rub on the flap and it will also give you protection outside the wheel well.
The brackets will install on the lip of the fender with self tapping screws and you will be able to take the 18" long flaps and trim them to the desired length.
Verified Answer
Admin answered on 8/5/2018