Full DPF/DEF/EGR Delete Kit /w EZ Lynk Auto Agent 3 | LML Duramax | 2011-2015

LML Duramax full delete kit with EZ Lynk Auto Agent 3 (2011-2015)

The 2011, 2012, 2013, 2014, 2015 6.6 LML Duramax Delete Kit with EZ Lynk Auto Agent 3 combines VIN-specific tuning with DPF, DEF/SCR, and EGR removal hardware. The LML kit reduces exhaust restriction, stops regeneration after correct tuning, and provides wireless monitoring and selectable power levels for off-road Chevrolet and GMC pickups.

What's included in delete kit

The LML Delete Kit combines the tuner and bolt-on hardware required for the supported early-LML exhaust configuration.

• EZ Lynk Auto Agent 3 - OBD-II tuning interface controlled through a smartphone app. EZ Lynk provides wireless flashing, cloud-delivered custom tunes, diagnostics, engine monitoring, and data logging.

• DPF/CAT Delete Pipe - 4-inch T-409 stainless steel pipe replaces the particulate filter and catalyst section while connecting to the factory downpipe through the V-band flange.

• 4-Inch Exhaust System - T-409 stainless steel downpipe-back exhaust option for increased flow with a balanced note.

• 5-Inch Exhaust System - Larger T-409 stainless steel option for maximum flow and a deeper sound. 

• EGR Valve & Cooler Delete Kit - Removes the EGR valve and cooler to stop exhaust recirculation and reduce soot buildup and clogging. The hardware includes block-off plate components, gaskets, and mounting hardware.

• Installation Hardware - Includes application-specific clamps, hangers, and hardware for the selected configuration.

The T-409 stainless steel delete pipe and exhaust hardware are confirmed for this platform.

Vehicle compatibility

The 6.6 Duramax kit fits Chevrolet and GMC Pickup applications with the early LML V-band exhaust connection.

• Years: 2011, 2012, 2013, 2014, early 2015

• Makes: Chevrolet, GMC

• Models: Silverado 2500HD, Silverado 3500HD, Sierra 2500HD, Sierra 3500HD

• Engine: 6.6L LML Duramax

• Transmission: Allison automatic

• Body Style: Pickup

• Pipe Connection: V-band flange

• Application: Off-road

• Cab & Chassis: Not compatible with this hardware LML kit

Late-2015 and 2016 trucks use a 3-bolt pipe connection and require the separate late-LML kit.

Performance & tuning

• No forced regeneration

• Stronger towing response

• Better throttle response

• Potential MPG improvement

• Fewer emissions derates

EZ Lynk supplies VIN-specific tuning and SOTF support for this LML pickup application.

Which configuration should you choose?

How the delete kit works on your GMC Duramax

1. Loads EZ Lynk calibration through the wireless cloud platform.

2. Removes DPF and catalyst restriction to stop regeneration.

3. Completes the DEF Delete and disables SCR operation.

4. Eliminates EGR recirculation to reduce intake soot.

5. Reduces exhaust backpressure for stronger throttle response.

Installation information

The Duramax delete kit includes installation guidance for the bolt-on hardware. Owners with basic-to-intermediate mechanical skills can complete the work, but correct tuning must be installed before emissions hardware is removed.

Technical specifications

No More Emissions Codes

Correct EZ Lynk calibration prevents emissions-related warnings caused specifically by removed DPF, EGR, DEF, and SCR hardware. Normal diagnostics remain active for unrelated engine, Allison transmission, turbocharger, fuel-system, wiring, and sensor faults.

DPF and regeneration codes

EGR system codes

DEF / SCR codes (2011-2015)

Correct calibration also prevents emissions-related limp mode and derate conditions caused specifically by removed DPF, DEF/SCR, or EGR components.

Not sure whether your 2015 LML uses the required V-band flange? Send us the VIN so the correct early-2015 or late-2015 pipe configuration can be confirmed.