AFE Large Bore-HD 4-Inch DPF-Back Dual Exhaust System with Polished Tips; Side Exit (11-16 6.6L Duramax Silverado 2500 HD)Find parts that fit my vehicle

High-Performance Exhaust System. The AFE Large Bore-HD 4-Inch DPF-Back Dual Exhaust System with Polished Tips; Side Exit significantly enhances exhaust flow and engine performance for LML Duramax trucks. Designed to convert the factory single exhaust into an aggressive dual exhaust, it increases horsepower and torque while reducing exhaust gas temperatures, delivering both power and efficiency. This exhaust system is ideal for enthusiasts seeking improved performance and sound with a factory-quality fit.

Construction and Appearance. Crafted from durable 409 stainless steel with 4-inch mandrel-bent tubing, this exhaust system ensures maximum flow and long-lasting reliability. The dual exhaust tips feature high-luster polished 304 stainless steel with a slash-cut design and include drain ports beneath the tips to prevent rust, maintaining their refined, aggressive look.

Installation. The exhaust system installs easily using all factory mounting points and includes OE-style bayonet hangers for superior fit and stability under vibration and heat. A bolt-on bracket supports the driver side tailpipe, allowing a simple, no-drill installation without modifications.

Application. Engineered for 2011-2016 6.6L Duramax Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, and Sierra 3500 HD trucks. Note that this system does not fit 2016 3500HD models equipped with the NOX sensor.

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