Dieselr Aluminized 4" Cat & DPF Race Pipes | GM 2500/3500 6.6L DURAMAX L5P 2017-2023

The Dieselr Aluminized 4" Cat & DPF Race Pipes (2017–2023) are built for performance-focused diesel owners who expect uncompromising durability and flow efficiency. Manufactured from 4-inch heavy-gauge aluminized steel, these pipes deliver a clean, unrestricted exhaust path that improves airflow and consistency under demanding load conditions.

Each Dieselr race pipe is mandrel-bent for precision flow and TIG-welded for long-term integrity. The aluminized coating protects against corrosion, road salt, and high heat, ensuring performance longevity even in harsh environments. Installation is straightforward thanks to factory-style hangers and secure connection points, providing a clean, professional fit.

Built, tested, and refined under real operating conditions, this Dieselr aluminized system embodies the brand’s standard of mechanical excellence—simple, durable, and built from steel that earns its keep.

Key Features

• 4" aluminized steel for maximum strength and corrosion resistance
• Mandrel bends for efficient, consistent exhaust flow
• Precision welds for a secure, long-lasting seal
• OEM-style mounting for clean, straightforward installation