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Diesel truck owners rely on their 6.6L LLY Duramax engines for consistent power, whether for towing, hauling, or daily driving. However, over time, factory-installed EGR systems become a source of carbon buildup, reduced throttle response, and costly maintenance. If you have experienced sluggish acceleration, excessive soot, or performance drop-offs, this kit provides the solution.
Why Choose DynoVox 6.6L LLY Duramax EGR Delete Kit?
The DynoVox 2004-2005 6.6L LLY Duramax EGR Delete Kit with High Flow Intake eliminates restrictive factory components to boost performance, efficiency, and longevity for your 2004-2005 Duramax. Designed specifically for the 6.6L LLY Duramax engine, this EGR Delete Kit combines a high flow intake system with precision-engineered block-off plates to deliver measurable gains in power, throttle response, and fuel economy.
5 Key Benefits of the DynoVox LLY EGR Delete Kit
15% More Horsepower & Torque
By removing carbon-clogged EGR components and upgrading to a high flow intake elbow, this Duramax EGR Delete Kit reduces exhaust backpressure and improves airflow for stronger acceleration—ideal for towing or performance driving.
Eliminates Carbon Buildup
Stop harmful exhaust gas recirculation that clogs intake manifolds. This 6.6L EGR Delete solution promotes cleaner combustion, extends engine life, and reduces maintenance costs.
Optimized High-Flow Intake System
The included high flow intake elbow maximizes air delivery to your 6.6L LLY Duramax, improving turbo spool time and fuel efficiency by up to 10%.
Durable, Heat-Resistant Construction
Made from CNC-machined aluminum and stainless steel, this LLY EGR Delete Kit withstands extreme temperatures for reliable performance in all conditions.
Easy 3-Hour Installation
Includes laser-cut gaskets, block-off plates, and all hardware. Compatible with other Duramax performance parts for future upgrades.
Built for Seamless Installation and Long-Term Reliability
Every component in the DynoVox EGR Delete Kit is precision-crafted from corrosion-resistant aluminum and stainless steel, capable of withstanding the extreme heat and pressure of a high-performance diesel engine. All necessary gaskets, clamps, block-off plates, and installation hardware are included.
This kit is fully compatible with:
2004–2005 GMC Sierra 2500HD/3500HD (LLY)
2004–2005 Chevrolet Silverado 2500HD/3500HD (LLY)
6.6L LLY Duramax Diesel Engines
Installation time is typically 2–3 hours with basic tools. An ECM tune is recommended after installation for best results.
Maximize Your 6.6L Duramax Performance Today
Upgrade your 2004–2005 Duramax with DynoVox’s EGR Delete Kit—and take it further with our CCV Reroute Kit and High-Performance Up-Pipe. Together, these systems deliver unmatched engine cleanliness, power, and efficiency.
Order now and experience the full power your LLY Duramax was built to deliver.
| Brand | DynoVox | SKU | CP-QMP-J00194-DY/QMP-HW00135 |
| Body Material | Aluminum & Stainless Steel & Silicone | Color | Red/Black |
| Weight | 3kg | Comply with Factory Testing Standards | Yes |
| Type | EGR Delete Kit | Warranty | 1 Year |
| Surface treatment | CNC Machined Anodized |
| Installation Location | Near the engine |
| Item Condition | New |
Warranty and Shipping Services
We provide a 1-year warranty and a 30-day free return and exchange service, so you have no worries. At the same time, you can enjoy fast and free shipping within the United States.
DISCLAIMER
1. By installing this product onto your vehicle, you assume all risk and liability associated with its use.2. It is your responsibility to make sure your Vehicle complies with all federal, state, and local emissions laws. Federal and many state and local laws prohibit the removal, modification, or rendering inoperative of any part of the design affecting emissions or safety on motor vehicles used on a public street or highway Violation may result in a fine of up to $ 32,500 per vehicle ( or possibly higher depending on changes in the law ). All civil penalties and fines for removing your vehicle emissions equipment are the sole responsibility of the end user.3. Due to its high-performance nature, this product may void the vehicle manufacturer's warranty.4. DynoVox is not responsible for the misuse of its products By installing this product, you release DynoVox of any liability associated with its use.5. Depending on where you live, restrictions may apply. Check all applicable laws before installing or using.6. The purchaser and end-user release, indemnities, discharges, and holds harmless DynoVox from any claims, damages, causes of action, injuries, or expenses resulting from or relating to the use or installation of this product that is in violation of the terms and conditions on this page, the product disclaimer, and/or the product installation instructions. DynoVox will not be liable for any direct, indirect, consequential, exemplary, punitive, statutory, or incidental damages or fines caused by the use.
Frequently asked questions