Dieselr Aluminized Downpipe Back Exhaust Single | GM 2500/3500 6.6L DURAMAX L5P 2020-2025

The Dieselr Aluminized Downpipe Back Exhaust (2020–2025) is designed for diesel platforms that need dependable performance, consistent flow, and strength that lasts. Built from 4-inch, 5-inch heavy-gauge aluminized steel, this system provides a smooth, unrestricted exhaust path that maintains lower EGTs and steady pressure under load.

Every Dieselr system is mandrel-bent to preserve flow efficiency and TIG-welded for long-term integrity. The aluminized coating resists rust, road salt, and heat stress—ensuring years of service in demanding conditions. Installation is simple and secure, featuring factory-style hanger alignment for a clean, professional finish.

Dieselr exhausts are field-tested and refined through real-world use, proving their durability and precision where it matters most—on hardworking diesels built for power and reliability.

Key Features

• 4″,5" aluminized steel construction for corrosion-resistant strength
• Mandrel-bent tubing for smooth, efficient exhaust flow
• Factory-style fitment for simple, tight installation
• Proven performance under heat and heavy load