Here is a concise yet informative product lineup description for the Mack CV/GU Truck Chrome Stacks & Tops product lineup: The Mack CV/GU Truck Chrome Stacks & Tops product lineup offers a wide selection of premium exhaust stacks and accessories to customize the look and performance of your Mack work truck. Choose from a variety of chrome-plated steel stacks in miter, turnout, and curved styles to complement the bold styling of your Mack CV or GU model. These stacks are available in popular sizes from 4 to 8 inches in diameter and feature lengths up to 120 inches to match your specific truck configuration. Enhance the visual appeal of your Mack with these high-quality chrome exhaust components that are built to last. Whether you need a straight stack, curved turnout, or bull hauler design, this product lineup has the premium chrome accessories to make your Mack truck stand out on the road.