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  • For Off-Road Use Only
    Black Bandit Delete Pipe GM Duramax 6.6L Down-pipe (2001-2004)
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GM Duramax 6.6L Down-pipe (2001-2004)

Sku: EP-DP-DMX-01

This product fits:

2001-2004 GM Duramax 6.6L Silverado 2500HD / 3500HD
2001-2004 GM Duramax 6.6L Sierra 2500HD / 3500HD
Not compatible with C&C trucks
$275.00
$220.00
-20%
Shipping calculated at checkout.

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Notification for the incorrect product/variant will be listed here.

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Within the device vehicle info section, look for the value with the text containing "14C204":
HC3A-14C204-ABH

Once you receive the device, please contact us with your serial number, VIN, and ECU strategy so we can create the custom tunes and send it to you for tuning your vehicle.

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Black Bandit Series 3 material image
T304 Stainless Steel

The Purest Stainless Steel used in Exhaust System Manufacturing

rust resistant icon

High Rust Resistance

Lasts up to 20+ years icon

Lasts Up To 20+ years

Looks better icon

Looks Better

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T409 Stainless Steel

The Standard Stainless Steel used in Exhaust System Manufacturing

rust prone icon

Low Rust Resistance

Lasts up to 20+ years icon

Lasts Up To 5-8 Years

Looks better icon

Looks Dull

Attention

A 2022 Cummins Tune Package was added to your cart. This tune is a beta tune that may cause the following:

  • Low power
  • Poor fuel mileage
  • Engine codes that may appear
  • Poor shifting characteristics

For a tested and proven tune, please view our Ram Cummins 6.7L All-in-One DPF/DEF/EGR Delete Kit w/ECM Swap (2022-2024)

Attention

You have added a product to your cart that requires the Service. This required additional service is NOT included in the price shown on TunerDepot.com. This means that you will be required to pay for the Service in addition to the product you have just added to the cart.

Vehicle Fitment

This 3" 2001-2004 Duramax Downpipe is specifically designed for 2001-2004 Chevrolet Silverado & GMC Sierra 2500 & 3500HD models with the 6.6L Duramax engine.

However, it does not fit Cab & Chassis trucks.

Performance Improvement

By upgrading to this turbocharger downpipe, you will improve exhaust flow significantly. The less restrictive 3" stainless steel design allows your engine to breathe more easily. As a result, the improved airflow reduces exhaust gas temperatures (EGTs), making the engine run more efficiently, especially under heavy loads or competitive driving conditions.

Enhanced Features

This downpipe improves flow by 20% compared to the stock pipe, making it perfect for high-performance or competition settings. Additionally, the included heat-wrap helps insulate the engine bay, lowering overall temperatures and enhancing heat retention where it matters most. Since the downpipe also includes a gasket, installation becomes more straightforward and ensures a proper seal. Importantly, this performance upgrade does not interfere with emissions systems, allowing for compliance without sacrificing power.

Key Benefits of 2001-2004 Duramax Downpipe :

  • 3" stainless steel piping for enhanced durability
  • 20% improvement in exhaust flow
  • Heat-wrap keeps engine bay temperatures down
  • Gasket included for secure, easy installation
  • Ideal for competition or heavy-duty applications

Important Product Information

Off-Road Use Only: The products sold on this website are intended for off-road use only, and may not be legal for use on public highways where pollution control laws apply.

Check Local Laws: Before purchasing and installing any of these parts, please check your local and state laws to confirm whether the modifications are legal in your area.

Professional Installation Recommended: These kits and parts are strongly recommended to be installed by professional mechanics only. Improper installation may lead to performance issues or damage to your vehicle. Unless specified differently on the product page, our parts do not include installation instructions. They are intended for individuals with a proficient understanding of mechanical systems and procedures. Like many aftermarket parts compatible with a variety of vehicles, minor adjustments or modifications may be necessary during the installation process. We cannot accept returns or offer refunds on the basis of an inability to complete the installation due to the absence of instructions.

Warranty: The use of these parts will void the warranty of your vehicle. Please confirm with your vehicle manufacturer before purchase and installation.

No Liability: Tuner Depot is not responsible for any damage or issues that may arise from the use of these parts.

Product Images: Product images are for illustrative purposes only and may differ from the actual product due to manufacturer design changes or improvements.

No Performance Guarantees: While these parts are designed to enhance the performance of your vehicle, no guarantees are made regarding the specific performance gains that will be achieved.

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Our Shipping Policy: Our aim is to dispatch all orders within two business days, providing you with a quick and efficient processing time. However, unforeseen circumstances beyond our control may occasionally impact shipping times.
Factors Affecting Shipping:
  • Weather Conditions: Adverse weather conditions such as rain, snow, or sleet may affect delivery timelines. We will make every effort to minimize any delays.
  • Holiday Periods: Please note that our shipping center will be closed during holidays. We will resume shipping promptly on the next business day. Allow for potential delays during peak seasons, but rest assured, we will keep you informed every step of the way.
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We genuinely appreciate your understanding and patience during any unexpected obstacles. Be assured that we will utilize every resource available to deliver your performance parts promptly.