What Is an LBZ Duramax EGR Delete Kit?
An LBZ EGR delete kit is an aftermarket product designed for the 2006-2007 6.6L Duramax LBZ diesel engine to remove or bypass the factory exhaust gas recirculation (EGR) system and, in many setups, the EGR cooler.
What's Included in an LBZ Duramax EGR Delete Kit?
Our kits include the essential components required to remove or bypass the factory EGR system on 2006–2007 GM 6.6L LBZ Duramax diesel engines. Most kits typically include:
- EGR block-off plate
- High-flow or intake bridge
- Coolant bypass or coolant reroute hose
- Gaskets and O-Ring Seals
- Complete mounting hardware, bolts, and clamps
Key Benefits of Installing an LBZ EGR Delete Kit
- Engine Longevity: Stop soot recirculation to keep your oil clean and intake clear.
- Reliability: Eliminate the EGR cooler to prevent leaks and head gasket failure.
- 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.
LBZ Duramax EGR Delete Kit: Deleted vs. Stock
| Dimension |
Stock |
Deleted |
| Horsepower |
Limited by factory intake and emissions-related restrictions |
May support improved airflow and performance when combined with tuning and other mods |
| Fuel Economy |
Efficiency is lost to EGR heat and carbon buildup. |
Removing restrictions typically gains 1–3 MPG. |
| Maintenance Cost |
High; Frequent EGR valve cleaning and sensor replacements. |
Reduced; Eliminates the primary cause of intake-related repairs. |
| Reliability |
EGR cooler leaks can still lead to head gasket stress. |
Cooler delete configuration can help reduce failure risk in the EGR system |
| Exhaust Gas Temp |
Recirculated hot gases spike intake and cylinder temps. |
Engine breathes cooler air, protecting the turbo. |
| Legal Status |
Factory emissions equipped |
Off-Road / Competition Use Only. |
6.6L Duramax LBZ EGR Delete Kit Model Year Fitment Guide
Choose the perfect LBZ EGR Delete Kit by year to guarantee seamless fitment and performance for your Chevrolet or GMC HD truck.
| Engine & Model Year |
Compatible Vehicles |
Factory Emissions Equipped |
Common Issues With Stock EGR System |
Recommended EGR Delete Setup |
| LBZ Duramax (2006–2007) |
Chevrolet Silverado & GMC Sierra 2500HD / 3500 |
EGR (No DPF/DEF) |
EGR valve sticking, soot buildup, hot intake charge, reduced airflow, cooler failure |
Performance EGR Delete Kit + High-Flow Y-Bridge. |
How to Install an LBZ Duramax EGR Delete Kit
Installing an LBZ Duramax EGR delete kit involves removing the factory EGR valve and EGR cooler assembly and replacing them with block-off plates, coolant bypass components, and upgraded intake parts included in the delete kit.
Installation Steps
- Vehicle Preparation: Park the truck on a flat surface, let the engine fully cool, and disconnect both batteries. Drain the necessary amount of coolant before removing any factory EGR cooler components. Remove engine covers, intake tubing, and other obstructions to access the EGR system.
- Remove Factory EGR Components: Remove the factory EGR valve, EGR cooler, associated pipe routing, and related hardware. Disconnect coolant lines, electrical connections, and mounting points as needed. Clean all mating surfaces before installing the new components.
- Install Delete Kit Components: Install the EGR block-off plate, high flow intake elbow, gaskets, o-rings, and mounting hardware included in the package. Ensure all contact surfaces are sealed correctly and all hardware is torqued to specification where applicable.
- Coolant System Reroute: Route the coolant bypass or reroute hose included in the kit so the cooling system continues to operate properly without the factory EGR cooler.
- Reassemble and Verify Operation: Reinstall removed components, refill coolant, bleed air from the system if needed, and start the engine. Check for coolant leaks, loose fittings, warning lights, and any abnormal engine temperature behavior.
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 Choose EngineGo for LBZ Duramax EGR Delete Kit?
EngineGo is focused on diesel performance parts for Duramax, Cummins, and Ford Powerstroke applications. Our goal is to provide reliable aftermarket products, strong fitment support, fast order processing, and a smooth shopping experience.
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
Which trucks are compatible with an LBZ EGR delete kit?
The LBZ Duramax engine was used in 2006 and 2007 GM heavy-duty trucks, including:
- Chevrolet Silverado 2500HD
- Chevrolet Silverado 3500HD
- GMC Sierra 2500HD
- GMC Sierra 3500HD
Always confirm your engine code and product fitment before you order.
Do I need tuning after installing an LBZ EGR delete kit?
Some vehicles may require tuning or calibration changes after removing emissions-related components. This depends on the vehicle configuration, other modifications, and the specific product setup.
What upgrades are commonly paired with an LBZ EGR delete kit?
Many diesel performance builds combine an LBZ Duramax EGR delete kit with additional upgrades that improve airflow and engine efficiency. Popular modifications include:
- Duramax CCV reroute kits
- Duramax up-pipe upgrades
- High-performance intake systems
- Duramax performance tuning
These upgrades are often used together to help optimize airflow and overall engine performance.
