With the fitment of our Fatz Built GQ Airbox, the factory radiator overflow bottle does need to be re-located or replaced with an item that is better suited to the space. We have developed a clean, purpose built overflow bottle for the application. Built in aluminium and finished in textured satin black powder coat, to match the Airboxes, this is a great solution for the need. With in-built spill tube to allow a vent and clean overflowing function, the bottle will always look great and do the job. With the role out of this product, the airboxes will come with mounting holes already in the airbox. If you have an existing box, there will be the need to drill 3 mounting holes for the bottle, and insert nutserts into the box. Fasteners are supplied with the bottle. This item could be utilised in other applications with similar requirements and mounting allowances.