The Peterbilt Stack Clamps are a practical and reliable solution for joining stacks without a mounting bracket. With a 5-inch clamp and chrome-plated stainless steel construction, these clamps are designed to cover the seam line on plain stacks. They are sold individually and fit most Peterbilt makes and models. These stack clamps offer a seamless and secure connection, ensuring durability and functionality. Upgrade your exhaust system with these high-quality clamps for a hassle-free installation and improved performance.