The Freightliner Catalytic Cover - Upper 2011 Day Cab - 40" is a practical and durable solution for your Freightliner Cascadia 2011 Day Cab. Made of stainless steel, this upper catalytic cover is 40 inches long and fits most models. Sold individually, this product is a reliable and cost-effective way to protect your vehicle's catalytic converter. Its sturdy construction ensures long-lasting performance, making it an excellent investment for any truck owner. Get the protection you need with the Freightliner Catalytic Cover - Upper 2011 Day Cab - 40".