The Mack Replacement Pipe is a practical and reliable solution for replacing the 4ME-32618 pipe in most DM Mack makes and models. With a 4" diameter and aluminized construction, this pipe offers durability and longevity. Sold individually, it fits seamlessly into the DM Model Pipe system. Designed to replace the OEM part, it ensures a perfect fit and optimal performance. Upgrade your Mack vehicle with this high-quality replacement pipe for enhanced functionality and efficiency.