The Outerwears Company manufactures a line of water repellent airbox cover kits which are run in place of the airbox lid. This product is designed to provide you with a low cost, easy to install kit that will allow more airflow to the filter yet still give you filtering ability. All kits are designed so that once installation is done you can easily remove the cover kit and use the stock airbox lid if you know you are going to ride in extremely wet/muddy conditions. Most of these kits are made with Velcro sewn around the perimeter of the pre-filtered material, while others are made with elastic. Adhesive Velcro is supplied with each kit manufactured with Velcro.Note: For stock airboxes you must have an aftermarket kit that clamps the filter in place. Otherwise the airbox lid is necessary to hold the filter in place.