Duramax EGR Delete Kit for LML, LMM, LBZ, and LLY Diesel Engines

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2004.5-2005 6.6L Duramax LLY Chevy Silverado GMC Sierra 2500/3500 EGR Delete Kit | EngineGo

EGR Delete Kit for 2004.5-2005 Chevy Silverado/GMC Sierra 2500/3500 6.6L Duramax LLY

SKU: PEG0350AZZ

$61.49

Installation Difficulty Level: Moderate

Duramax EGR

Vehicle Fit Guide: For 2004.5 & 2005 Chevrolet Silverado 2500 3500 HD LLY 6.6L Duramax Diesel Pickup;Also For 2004.5 & 2005 GMC Sierra 2500 3500 HD LLY 6.6L Duramax Diesel Pickup.Important: Not compatible with Cab & Chassis Trucks.

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11%

2017-2025 EGR Valve Cooler Delete Kit for Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P | EngineGo

EGR Valve & Cooler Delete Kit for 2017-2025 Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

SKU: PEG0200AZZ

$157.77 $177.52

Installation Difficulty Level: Hard

Duramax EGR

Vehicle Fit Guide: For 2017-2025 Chevrolet Silverado/GMC Sierra 2500HD/3500HD 6.6L Duramax L5P Pickup.Important: Not compatible with Cab & Chassis Trucks.

2006-2007.5 6.6L Duramax LBZ EGR Valve & Cooler Delete Kit for Chevy Silverado GMC Sierra 2500 3500 HD | EngineGo

EGR Valve & Cooler Delete Kit for 2006-2007.5 Chevrolet Silverado/GMC Sierra 2500 3500 HD 6.6L Duramax LBZ

SKU: PEG0360AZZ

$61.49

Installation Difficulty Level: Hard

Duramax EGR

Vehicle Fit Guide: 2006 & 2007.5 Chevrolet Silverado 2500 HD/3500 HD 6.6L LBZ Duramax Diesel;2006 & 2007.5 GMC Sierra 2500 HD/3500 HD 6.6L LBZ Duramax Diesel;Important: Not Compatible with Cab & Chassis Commercial Style Truck.

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21%

2007.5-2010 6.6 Duramax LMM GMC Sierra/Chevy Silverado 2500 3500 HD EGR Delete Kit | EngineGo

EGR Delete Kit for 2007.5-2010 GMC Sierra/Chevy Silverado 2500 3500 HD 6.6L Duramax LMM

SKU: PEG0400AZZ

$62.32 $79.00

Installation Difficulty Level: Hard

Duramax EGR

Vehicle Fit Guide: 2007.5, 2008, 2009 & 2010 Chevrolet Silverado 2500HD/3500HD 6.6L Duramax LMM Pickup;2007.5, 2008, 2009 & 2010 GMC Sierra 2500HD/3500HD 6.6L Duramax LMM Pickup;Important: Not Compatible with Cab & Chassis Commercial Style Truck.

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2011-2016 6.6L Duramax LML EGR Valve Cooler Delete Kit w/ Block-off Plate for Chevy Silverado/GMC Sierra 2500/3500HD Black | EngineGo

EGR Valve Cooler Delete Kit w/ Block-off Plate (Black) for 2011-2016 Chevy Silverado/GMC Sierra 2500HD/3500 HD 6.6L Duramax LML

SKU: PEG0090AZZ

$91.99 $96.99

Installation Difficulty Level: Hard

Duramax EGR

Vehicle Fit Guide: 2011, 2012, 2013, 2014, 2015 & 2016 6.6L Duramax LML Diesel for Chevy Silverado/GMC Sierra 2500/3500HD.Important: Not Compatible with Cab & Chassis Commercial Style Truck.

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2004.5-2005 6.6L Duramax LLY EGR Delete Kit with High Flow Intake Elbow for Chevy Silverado/GMC Sierra 2500/3500 HD | EngineGo

EGR Delete Kit with High Flow Intake Elbow for 2004.5-2005 Chevy Silverado/GMC Sierra 2500/3500 HD 6.6L Duramax LLY

SKU: PEG0300AZZ

$108.77 $117.77

Installation Difficulty Level: Moderate

Duramax EGR

Vehicle Fit Guide: For 2004.5 & 2005 Chevrolet Silverado 2500 HD / 3500 HD LLY 6.6L Duramax Diesel Pickup;Also For 2004.5 & 2005 GMC Sierra 2500 HD / 3500 HD LLY 6.6L Duramax Diesel Pickup.Important: Not compatible with Cab & Chassis Trucks.

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12%

EngineGo EGR Delete Kit with High Flow Intake Elbow for 07.5-10 Sierra/Silverado 2500 3500 HD 6.6L Duramax LMM

EGR Delete Kit with High Flow Intake Elbow Pipe for 2007.5-2010 Sierra/Silverado 2500 3500 HD 6.6L Duramax LMM

SKU: PEG0040AZZ

$114.99 $129.99

Installation Difficulty Level: Hard

Duramax EGR

Vehicle Fit Guide: 2007.5, 2008, 2009 & 2010 LMM 6.6L Duramax Diesel GMC Sierra/Chevy Silverado 2500 3500 HD.Important: Not Compatible with Cab & Chassis Commercial Style Truck.

2011-2016 6.6L Duramax LML EGR Valve & Cooler Delete Kit with Block-off Plate for Chevy Silverado/GMC Sierra 2500/3500 HD Silver | EngineGo

EGR Valve & Cooler Delete Kit with Block-off Plate (Silver) for 2011-2016 Chevy Silverado/GMC Sierra 2500/3500 HD 6.6L Duramax LML

SKU: PEG0290AZZ

$79.77

Installation Difficulty Level: Hard

Duramax EGR

Vehicle Fit Guide: For 2011, 2012, 2013, 2014, 2015 & 2016 Chevrolet Silverado 2500 HD / 3500 HD 6.6 Duramax Diesel Pickup;Also For 2011, 2012, 2013, 2014, 2015 & 2016 GMC Sierra 2500 HD / 3500 HD 6.6 Duramax Diesel Pickup.Important: Not compatible with Cab & Chassis Trucks.

Key Benefits of Installing a Duramax EGR Delete Kit

Reliability: Eliminate the EGR cooler to prevent coolant leaks and head gasket failure.
Engine Longevity: Stop soot recirculation to keep your oil clean and intake clear.
Lower Maintenance: End expensive EGR valve cleanings and repetitive cooler repairs.
Better Cooling: Reduce engine temperatures by removing the restrictive EGR system.
Performance: Experience smoother power delivery and improved throttle response.

Duramax EGR Delete Kit: Deleted vs. Stock

Dimension	Stock	Deleted
Horsepower	Restricted by factory tuning and exhaust backpressure.	With proper tuning, a power gain of 60–150+ HP is achievable.
Fuel Economy	Average; efficiency is lost to EGR heat and active Regen cycles.	Better airflow and engine efficiency may support better MPG in off-road builds.
Maintenance Cost	Frequent EGR valve cleanings and expensive sensor repairs.	Eliminates the primary failure points that lead to Limp Mode.
Reliability	EGR cooler leaks can cause coolant loss and head gasket failure.	Removes the primary cause of intake soot buildup and sludge.
Exhaust Gas Temp	Recirculated exhaust gases significantly heat the intake air.	Engine breathes cooler, cleaner air, protecting the turbo.
Legal Status	Street Legal; EPA and CARB compliant.	Off-Road / Competition Use Only.

Recommended Upgrades to Pair with a Duramax EGR Delete Kit

Many diesel performance enthusiasts combine multiple upgrades to maximize performance. Installing an EGR delete kit often works best when paired with:

Duramax DPF Delete Kit
Duramax CCV Reroute Kit
Duramax Up-Pipe Upgrade
Duramax Performance Tuners
High Flow Intake Elbow
Exhaust System Upgrades

Duramax EGR Delete Kit Model Year Fitment Guide

Choosing the right** **Kit by year is essential to ensure seamless fitment, correct sensor positioning, and proper coolant routing. Use the guide below to identify the best kit for your Duramax based on engine generation and truck application.

Engine & Model Year	Compatible Vehicles (Chevy/GMC HD Trucks)	Factory Emissions Equipped	Common Issues With Stock EGR System	Recommended EGR Delete Setup
LB7 Duramax (2001–2004)	Chevy Silverado & GMC Sierra 2500HD / 3500	No EGR (Standard) / Early EGR (CA Models)	Intake soot buildup on California-emissions models, restricted airflow.	Basic EGR block-off plate for applicable models or High-Flow Intake Horn upgrade
LLY Duramax (2004.5–2005)	Chevy Silverado & GMC Sierra 2500HD / 3500	First widespread EGR adoption	Overheating issues, EGR cooler leaks, heavy carbon accumulation.	Full EGR Cooler Delete with Upgraded Intake Mouthpiece.
LBZ Duramax (2006–2007)	Chevy Silverado & GMC Sierra 2500HD / 3500 (Classic)	EGR (No DPF/DEF)	EGR valve sticking, soot buildup, reduced turbo response.	Performance EGR Delete Kit + High-Flow Y-Bridge.
LMM Duramax (2007.5–2010)	Silverado & Sierra 2500HD / 3500HD	EGR + DPF (No DEF)	Frequent regen cycles, coolant loss through cracked coolers, intake sludge.	All-in-One EGR & Cooler Delete with high-temp bypass.
LML Duramax (2011–2016)	Chevy Silverado & GMC Sierra 2500HD / 3500HD	EGR + DPF + DEF (SCR)	Extreme carbon buildup, coolant leaks, sensor-related Limp Mode.	Stage 2 Delete Kit with Coolant Bypass and High-Flow Y-Bridge.
L5P Duramax (2017–2019)	Chevy Silverado & GMC Sierra 2500HD / 3500HD	Advanced EGR + DPF + DEF	Higher engine bay temps, more complex plumbing, difficult maintenance access	Year-Specific L5P EGR Delete (requires ECM Unlock).
L5P Duramax (2020–2025+)	Chevy Silverado & GMC Sierra 2500HD / 3500HD	Advanced EGR + Locked ECM	Tighter packaging, higher complexity, limited aftermarket routing space	Vetted 2020+ Hardware Kits + Specialized Tuning Support.

How to Install a Duramax EGR Delete Kit

Installing a Duramax EGR Delete kit involves removing the factory EGR valve and cooler assembly and replacing them with block-off plates, coolant bypass components, and upgraded intake parts included in the kit.

Installation Steps

Vehicle Preparation: Park the truck on a flat surface and allow the engine to cool completely. Disconnect both batteries and drain a portion of the coolant before beginning work. This step helps protect the electrical system and makes coolant reroute work easier.
Remove Factory EGR Components: The factory EGR valve, cooler, and related piping are removed from the engine. Electrical connectors, coolant lines, and mounting bolts are disconnected, and the sealing surfaces are cleaned before new hardware is installed.
Install EGR Delete Kit Components: Install the block-off plates, intake parts, and reroute components included in the kit. Many of our systems are designed to be easy to install with factory-style mounting alignment and complete hardware.
Coolant System Reroute: Because the factory cooler is removed, coolant must be rerouted with the included bypass hose or fittings. Proper reroute is essential to maintaining correct coolant circulation after the delete is completed.
Reassemble and Verify: Reinstall intake tubing and other removed components, refill coolant, inspect for leaks, and verify that all hardware is secure. For many trucks, tuning may be required after install to prevent warning lights or operating issues.

Note: Every EngineGo kit includes a comprehensive, model-specific guide to ensure your installation is seamless and your fitment is guaranteed. For technical deep-dives, step-by-step photos, and specific torque specs, you can find detailed information under the "Installation Guide" tab on every product page.

Why Many Duramax Owners Choose EGR Deletes

For dedicated off-road builds, many Duramax owners choose EGR deletes because they can help:

Reduce carbon buildup
Support cleaner airflow
Improve throttle response
Reduce maintenance related to the EGR valve and cooler
Complement DPF, exhaust, and tuning upgrades
Help the Duramax engine run cleaner under load

Whether you own a Duramax lly, Duramax lbz, Duramax lmm, lml, or l5p Duramax, choosing the right kit for your Duramax is essential for performance, fitment, and long-term reliability.

Why Choose EngineGo for Duramax EGR Delete Kit

Choosing EngineGo means partnering with diesel performance experts. We back every build with technical support, ensuring your truck moves from the shop to the street with peak power and reliability.

15+ Years of Expert Support

In-House Specialists: Our team has over 15 years of hands-on experience in Ford Powerstroke, Cummins, and Duramax platforms.

Expert Guidance: We provide comprehensive support, from initial fitment questions to final tuning advice.

High-Performance Reliability

Built to Last: We pride ourselves on offering parts designed for maximum durability and long-term reliability.

Expertly Vetted: Every product is backed by our deep understanding of diesel engines.

A Seamless Shopping Experience

Free Shipping: Many of our kits include free shipping to get your project started without extra costs.

Money-Back Guarantee: Shop with confidence knowing your purchase is protected if you aren't satisfied.

Off-Road Use Disclaimer

Diesel delete kits are intended for off-road and competition-use vehicles only. These products are not legal for use on public roads and are sold strictly for non-emissions-controlled applications.

Always verify and comply with local, state, and federal regulations before purchase or installation.

FAQ

Does an EGR delete increase horsepower on a Duramax?

A Duramax EGR Delete kit primarily supports better airflow and reduced soot contamination. While gains vary by build, many truck owners notice improved throttle response, stronger consistency under load, and better overall performance when paired with proper tuning.

Do I need tuning after installing an EGR delete kit?

Some 6.6L Duramax applications require tuning after installation to prevent warning lights or fault codes and to ensure the engine runs correctly.

Will deleting the EGR improve fuel economy?

Some truck owners report slight improvements in fuel efficiency due to improved combustion and airflow, although results may vary depending on driving conditions.

Which Duramax engines benefit most from EGR deletes?

The LLY, LBZ, LMM, and LML platforms are among the most common applications for EGR delete kits, though newer L5P Duramax trucks also have year-specific options depending on hardware and tuning support.

How do I choose the right kit for my truck?

Start with your engine model, model year, and truck platform. The right kit depends on coolant routing, intake configuration, emissions hardware, and whether you are pairing the setup with a dpf delete, tuner, or intake upgrade.

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