Full Delete Kit w/ EZ Lynk Auto Agent 3 Tuner | GM/Chevy Duramax 6.6L LML | 2011-2015

Full Delete Kit w/ EZ Lynk Auto Agent 3 Tuner | GM/Chevy Duramax 6.6L LML | 2011-2015

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SKU: 23314
For off-road and race use only

Price range: $2,195 through $2,673

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Proven power gains.

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Description

What’s Included

Component Description
EZ Lynk Auto Agent 3 Smartphone-based tuning device that connects through the OBD-II port and AutoAgent app for ECU profile installation, diagnostics, live engine data, and tuning support.
Vehicle-Specific Tuning Calibration is built for the supported LML setup and adjusts the factory DPF, DEF/SCR, and EGR strategies while providing multiple performance stages.
EGR Delete Kit Includes the block-off plates, valve and cooler removal hardware, gaskets, and supporting components required for the modified EGR system.
Exhaust Option Choose a Delete Pipe, 4-inch Exhaust System, or 5-inch Exhaust System to remove the restrictive factory particulate filter and CAT section.
Installation Hardware Includes the clamps, connections, and required parts for the selected exhaust configuration.

This All-in-One bundle combines the main tuning and mechanical components into one complete diesel package.

Vehicle Compatibility

This Duramax LML delete kit is designed for:

  • Years: 2011, 2012, 2013, 2014, 2015
  • Make: Chevrolet / GMC
  • Models: Silverado 2500HD, Silverado 3500HD, Sierra 2500HD, Sierra 3500HD
  • Engine: 6.6L Duramax LML
  • Body style: Pickup
  • Exhaust connection: V-band
  • 2015 fitment: Early-production 2015 models with the V-band connection
  • Application: Off-road and competition use

The hardware fits the earlier LML exhaust layout. Late-production 2015 trucks with the later flange use a different pipe and exhaust configuration.

How work?

The 2011, 2012, 2013, 2014, 2015 LML Duramax delete kit w/ EZ Lynk Auto Agent 3 Tuner combines physical emissions removal with matching engine calibration. The selected exhaust replaces the factory DPF, CAT, and DEF/SCR aftertreatment section, while the EGR hardware removes the valve and cooler from the recirculation path. EZ Lynk installs the required tune through the smartphone app so the engine operates with the modified system. Reduced exhaust restriction and soot buildup can improve flow, throttle response, boost response, and overall performance.

Features

A key advantage of this GM/Chevy Duramax LML delete kit is cloud-based tuning instead of a traditional handheld screen. The EZ Lynk device uses a phone for ECU profiles, live data, diagnostics, and remote support.

The package is designed specifically around the 2011-early 2015 factory exhaust layout and offers three exhaust configurations. The Delete Pipe retains more of the original exhaust, while the 4-inch and 5-inch systems provide a larger flow path. Normal CCV maintenance remains part of regular engine service.

Tuning & Settings

The 2011-2015 LML Duramax delete kit supports five available power levels:

Tune Stage Power Increase Intended Use
Level 1 0 HP Stock-level output
Level 2 +50 HP Mild daily-driving upgrade
Level 3 +100 HP Stronger street and towing response
Level 4 +150 HP Higher-performance use
Level 5 +200 HP Maximum available power setting

 

Characteristic Expected Change
Maximum Power Gain Up to +200 HP
Fuel Efficiency Approximately 5-15% potential improvement
EGT Under Load Approximately 100-200°F potential reduction
DPF Regeneration Eliminated after correct removal and tuning
Exhaust Restriction Reduced after factory filter removal
Throttle Response Improved through freer exhaust flow and tuning
Towing Response Stronger usable power; factory tow ratings remain unchanged

Actual power, fuel economy, and reliability depend on tune selection, truck condition, load, tires, maintenance, and supporting upgrades.

Optional Add-Ons

  • Delete Pipe – retains more of the factory exhaust while replacing the restrictive DPF/CAT section.
  • 4-Inch Exhaust System – balanced upgrade for improved flow and a moderate exhaust tone.
  • 5-Inch Exhaust System – larger system for deeper sound and increased exhaust volume.
  • No Muffler – provides the most aggressive exhaust note.
  • With Muffler – reduces volume and highway drone.

Key Benefits

Cloud-Based Tuning – EZ Lynk provides tune delivery, diagnostics, and engine monitoring through a smartphone.

Up to +200 HP – five power stages allow the owner to choose an appropriate performance level.

Reduced Soot Buildup – EGR removal prevents exhaust soot from continually entering the intake.

Flexible Exhaust Selection – the package can be configured as a simple pipe replacement or a full 4-inch or 5-inch upgrade.

Matched Hardware and Calibration – the full delete kit for LML Duramax 2011-2015 combines compatible tuning, EGR parts, and exhaust hardware in one solution.

Installation Information

Installation instructions are included. A mechanically experienced owner can complete the hardware work using metric sockets and wrenches, extensions, a torque wrench, penetrating oil, an exhaust sensor socket, coolant-handling tools, and safe lifting equipment.

A simpler tuner and Delete Pipe setup generally takes around 2-3 hours. A complete exhaust and EGR installation typically requires approximately 3-5 hours.

For tuning, connect EZ Lynk to the OBD-II port, open the AutoAgent app, connect the smartphone to the device, and install the supplied ECU profile. The correct tune should be loaded before the factory emissions hardware is removed.

No More Emissions Codes

Correct EZ Lynk programming prevents supported warnings, regeneration requests, limp mode, and derate conditions caused by the removed emissions components. Normal diagnostics for unrelated engine, fuel, turbo, transmission, wiring, and sensor failures remain active.

Common applicable code families include:

  • DPF: P2002, P242F, P2452, P2453, P2458, P2459, P2463, P246C
  • EGR: P0401, P0402, P0403, P0404, P0405, P0406, P2457
  • DEF/SCR: P203B, P204F, P205B, P207F, P208A, P20B9, P20BA, P20EE, P229F

Exact DTC coverage depends on the ECM strategy and installed tune.

FAQ

The package combines the main hardware and tuning required for a complete LML setup rather than making the owner shop for separate parts. It also provides several exhaust choices and multiple power levels for different truck configurations.

EZ Lynk provides wireless smartphone-based tuning, live monitoring, code reading, and remote tune support through one compact device. Its cloud-based workflow also makes future tune updates easier than traditional file-transfer methods.

Yes. Available engine tunes range from stock-level output to +50, +100, +150, and up to +200 HP, allowing the owner to select a stage appropriate for the engine and intended use.

Removing normal DPF regeneration and reducing exhaust restriction can improve fuel efficiency. Potential gains of approximately 5-15% are possible depending on tune, load, tires, vehicle condition, and driving style.

The package removes several emissions-related failure points associated with the particulate filter, DEF system, and EGR valve and cooler. Long-term reliability still depends on correct installation, sensible tune selection, and regular maintenance.

No. An owner with suitable mechanical skills can install the hardware and complete the EZ Lynk setup using the supplied instructions. A diesel performance shop remains a practical option when exhaust, EGR, or ECU work is unfamiliar.