Name: Aluminized (2011-2016 GM 2500/3500 6.6L Duramax LML) Exhaust System
Brand: DIESELR
Price: 468.0 USD
Availability: InStock

Aluminized (2011-2016 GM 2500/3500 6.6L Duramax LML) Exhaust System

$468.00

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Year

2011-2015

2015.5-2016

Choose Exhaust

4" Cat & DPF Race Pipe

4" Full Exhaust

5" Full Exhaust

Muffler

Without

With Muffler

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The Downpipe Back Exhaust (2011–2016) is designed for serious diesel owners who want proven airflow gains and rugged dependability. Constructed from 4-inch, 5-inch heavy-gauge aluminized steel, this system provides a clean, unrestricted path from turbo outlet to tail section—improving exhaust velocity and lowering EGTs under heavy load.

Each exhaust is mandrel-bent for precise geometry and TIG-welded for lasting strength. The aluminized coating resists corrosion, heat, and salt, ensuring long-term reliability in demanding conditions. Its OEM-style alignment and mounting points make installation simple, secure, and clean with no modifications required.

Built for performance and longevity, this system defines what stands for—straightforward design, precision fitment, and real-world durability tested on working diesels.

Key Features

4",5" aluminized steel for maximum strength and corrosion protection
Mandrel bends for smooth, consistent exhaust flow
Factory-style hanger fitment for simple, secure installation
Built to handle heat, load, and high-pressure applications

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