The Freightliner Louvered Cowl Extension is a practical and durable addition to your Freightliner Classic. Made of stainless steel, these louvered extensions are sold in pairs and fit most Freightliner Classic makes and models. They provide added ventilation and protection for your engine, helping to keep it running smoothly and efficiently. Upgrade your truck with this functional and stylish accessory that not only enhances the look of your vehicle but also improves its performance.