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PACKAGE INCLUDES

1*High Flow Pipe
1*Rubber tube
2*Flange Clamp
1*O-Ring Seal
1*EGR Bloker Off Plate
1 Pack Screws & Nuts

Why Choose the 6.6L LLY Duramax EGR Delete Kit for 2004-2005 GMC Silverado?

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.

Key Features of Our 2004–2005 LLY EGR Delete Kit

  • OEM-Fit Design: Precision-engineered for 2004-2005 GM Duramax trucks
  • Leak-Proof Seals: High-temp O-rings and pressure-tested components
  • Aircraft-Grade Materials: Corrosion-resistant aluminum/stainless steel construction
  • Turbo-Friendly: Reduces EGTs for safer towing and heavy loads
  • DIY-Ready: Includes step-by-step instructions (no welding required)

Vehicle Compatibility

This Duramax EGR Delete Kit fits:

  • 2004–2005 GMC Sierra 2500HD/3500HD
  • 2004–2005 Chevrolet Silverado 2500HD/3500HD
  • 6.6L LLY Duramax Diesel Engines

Installation Overview

  1. Disconnect battery and cool engine
  2. Remove factory EGR valve/cooler
  3. Install anodized block-off plates
  4. Upgrade to high flow intake system
  5. Reconnect components and test for leaks

Note: An ECM tune is recommended to optimize performance after installation.

Upgrade Your Duramax Today

This EGR Delete Kit is the ultimate solution for 2004-2005 LLY Duramax owners seeking better power, efficiency, and engine longevity.

Order Now and Experience True Duramax Performance!

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
What does EGR delete do on Duramax?
An EGR delete consists of using a delete kit to remove the system. The benefits include an improvement in engine performance, fuel economy and not having to worry about emergency maintenance on the EGR (or even the engine itself).
Is EGR delete good for diesel?
Deleting the EGR system can help keep your engine running cleaner. Customization: For diesel truck owners, an EGR delete can be a way to customize your truck and improve its performance.
What happens if you delete EGR system?
Deleting the EGR system can improve engine power response by eliminating exhaust gas recirculation, reduce maintenance costs by avoiding EGR valve clogs or malfunctions, and simplify the engine structure for lower failure risks.
What are the pros and cons of EGR delete?
Quite a bit more power and torque. Better fuel economy on a conservative tune. Better reliability. Less carbon buildup in most cases. You no longer have to be as picky about what oil you use. You'll have a much louder exhaust with more turbo noise. No more buying DEF.
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