aFe ATLAS 49-04041 5-Inch Aluminized Steel DPF-Back Exhaust System for 2011-2014 GM 6.6L LML Diesel Trucks

Interested in a new exhaust system? Check out the ATLAS DPF-Back exhaust system by aFe. This system is constructed from 5 in. mandrel-bent aluminized steel tubing. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs. Uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations to provide a quick, hassle-free installation. ATLAS exhaust systems are the perfect combination of performance, fit and value. All aFe exhaust systems are engineered and manufactured in out Corona, California manufacturing facility. ATLAS 5 IN Aluminized Steel DPF-Back Exhaust System GM Diesel Trucks 11-16 V8-6.6L (td) LML

• Bayonet OE Style/Welded-On Hangers
• Increased Flow And Performance
• 5 in. Aluminized Steel Tubing
• High Quality Band Clamps
• Hassle Free Installation
• 2 Year Limited Warranty
• All Hardware Included
• Street Legal Exhaust
• Aggressive Sound
• Direct Bolt On
• 50 State Legal

Upgrade your diesel truck’s exhaust flow with the aFe ATLAS 49-04041 DPF-back exhaust system. Designed for select 2011-2014 GM diesel trucks equipped with the 6.6L V8 LML engine, this system replaces the exhaust components behind the diesel particulate filter with 5-inch mandrel-bent aluminized steel tubing. The smooth bends reduce turbulence to support improved exhaust flow, increased performance, and lower exhaust gas temperatures.

Built for dependable street use, the aFe ATLAS system features OE-style bayonet hangers, welded-on mounting points, and high-quality band clamps. It uses the vehicle’s factory mounting locations for a direct bolt-on installation without extensive modification. The system delivers an aggressive exhaust tone while maintaining a practical, factory-compatible fit. All required hardware is included, and the exhaust system is backed by a 2-year limited warranty.

The aFe ATLAS 49-04041 is engineered and manufactured by aFe in Corona, California. It is intended for compatible GM diesel truck applications and is listed as street legal; however, it is not CARB approved. Verify local emissions requirements and vehicle fitment before ordering. Confirmed fitment includes select 2011-2014 Chevrolet Silverado 2500 HD models with the 6.6L LML diesel engine. Additional application details may vary by cab configuration, drivetrain, and exhaust arrangement.

What's Included

• 5-inch aluminized steel DPF-back exhaust tubing
• OE-style bayonet hangers and welded-on mounting hardware
• High-quality band clamps
• Installation hardware
• 2-year limited warranty coverage

Features:

• 5-Inch Aluminized Steel Tubing: Provides durable exhaust construction with smooth, mandrel-bent passages for improved flow.
• Improved Exhaust Flow: Smooth transition bends help reduce turbulence and support increased horsepower and torque.
• Reduced Exhaust Gas Temperatures: Efficient exhaust routing helps promote lower EGTs under demanding driving conditions.
• Direct Bolt-On Installation: Uses factory mounting locations, OE-style hangers, and included hardware for a hassle-free installation.

Fitments:
2011 Chevrolet Silverado 2500 HD LT
2011 Chevrolet Silverado 2500 HD LTZ
2011 Chevrolet Silverado 2500 HD WT
2011 Chevrolet Silverado 3500 HD LT
2011 Chevrolet Silverado 3500 HD LTZ
2011 Chevrolet Silverado 3500 HD WT
2011 GMC Sierra 2500 HD Denali
2011 GMC Sierra 2500 HD SLE
2011 GMC Sierra 2500 HD SLT
2011 GMC Sierra 2500 HD WT
2011 GMC Sierra 3500 HD Denali
2011 GMC Sierra 3500 HD SLE
2011 GMC Sierra 3500 HD SLT
2011 GMC Sierra 3500 HD WT
2012 Chevrolet Silverado 2500 HD LT
2012 Chevrolet Silverado 2500 HD LTZ
2012 Chevrolet Silverado 2500 HD WT
2012 Chevrolet Silverado 3500 HD LT
2012 Chevrolet Silverado 3500 HD LTZ
2012 Chevrolet Silverado 3500 HD WT
2012 GMC Sierra 2500 HD Denali
2012 GMC Sierra 2500 HD SLE
2012 GMC Sierra 2500 HD SLT
2012 GMC Sierra 2500 HD WT
2012 GMC Sierra 3500 HD Denali
2012 GMC Sierra 3500 HD SLE
2012 GMC Sierra 3500 HD SLT
2012 GMC Sierra 3500 HD WT
2013 Chevrolet Silverado 2500 HD LT
2013 Chevrolet Silverado 2500 HD LTZ
2013 Chevrolet Silverado 2500 HD WT
2013 Chevrolet Silverado 3500 HD LT
2013 Chevrolet Silverado 3500 HD LTZ
2013 Chevrolet Silverado 3500 HD WT
2013 GMC Sierra 2500 HD Denali
2013 GMC Sierra 2500 HD SLE
2013 GMC Sierra 2500 HD SLT
2013 GMC Sierra 2500 HD WT
2013 GMC Sierra 3500 HD Denali
2013 GMC Sierra 3500 HD SLE
2013 GMC Sierra 3500 HD SLT
2013 GMC Sierra 3500 HD WT
2014 Chevrolet Silverado 2500 HD LT
2014 Chevrolet Silverado 2500 HD LTZ
2014 Chevrolet Silverado 2500 HD WT
2014 Chevrolet Silverado 3500 HD LT
2014 Chevrolet Silverado 3500 HD LTZ
2014 Chevrolet Silverado 3500 HD WT
2014 GMC Sierra 2500 HD Denali
2014 GMC Sierra 2500 HD SLE
2014 GMC Sierra 2500 HD SLT
2014 GMC Sierra 2500 HD WT
2014 GMC Sierra 3500 HD Denali
2014 GMC Sierra 3500 HD SLE
2014 GMC Sierra 3500 HD SLT
2014 GMC Sierra 3500 HD WT
2015 Chevrolet Silverado 2500 HD High Country
2015 Chevrolet Silverado 2500 HD LT
2015 Chevrolet Silverado 2500 HD LTZ
2015 Chevrolet Silverado 2500 HD WT
2015 Chevrolet Silverado 3500 HD High Country
2015 Chevrolet Silverado 3500 HD LT
2015 Chevrolet Silverado 3500 HD LTZ
2015 Chevrolet Silverado 3500 HD WT
2015 GMC Sierra 2500 HD Base
2015 GMC Sierra 2500 HD Denali
2015 GMC Sierra 2500 HD SLE
2015 GMC Sierra 2500 HD SLT
2015 GMC Sierra 3500 HD Base
2015 GMC Sierra 3500 HD Denali
2015 GMC Sierra 3500 HD SLE
2015 GMC Sierra 3500 HD SLT
2016 Chevrolet Silverado 2500 HD High Country
2016 Chevrolet Silverado 2500 HD LT
2016 Chevrolet Silverado 2500 HD LTZ
2016 Chevrolet Silverado 2500 HD WT
2016 Chevrolet Silverado 3500 HD High Country
2016 Chevrolet Silverado 3500 HD LT
2016 Chevrolet Silverado 3500 HD LTZ
2016 Chevrolet Silverado 3500 HD WT
2016 GMC Sierra 2500 HD Base
2016 GMC Sierra 2500 HD Denali
2016 GMC Sierra 2500 HD SLE
2016 GMC Sierra 2500 HD SLT
2016 GMC Sierra 3500 HD Base
2016 GMC Sierra 3500 HD Denali
2016 GMC Sierra 3500 HD SLE
2016 GMC Sierra 3500 HD SLT

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1