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  • For Off-Road Use Only
    Tuner Depot Intercooler Pipe GM Duramax LB7 - Intercooler Pipe & Boot Kit (2002-2004)
  • For Off-Road Use Only
    Tuner Depot Intercooler Pipe GM Duramax LB7 - Intercooler Pipe & Boot Kit (2002-2004)
  • For Off-Road Use Only
    Tuner Depot Intercooler Pipe GM Duramax LB7 - Intercooler Pipe & Boot Kit (2002-2004)
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GM Duramax LB7 - Intercooler Pipe & Boot Kit (2002-2004)

Sku: INT-GM-KIT-02

This product fits:

2002-2004 Chevy Duramax LB7 6.6L Silverado 2500HD / 3500HD
2002-2004 GMC Duramax LB7 6.6L Sierra 2500HD / 3500HD
$299.99
-0%
Shipping calculated at checkout.

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HC3A-14C204-ABH

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T304 Stainless Steel

The Purest Stainless Steel used in Exhaust System Manufacturing

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High Rust Resistance

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Lasts Up To 20+ years

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Looks Better

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T409 Stainless Steel

The Standard Stainless Steel used in Exhaust System Manufacturing

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Low Rust Resistance

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Lasts Up To 5-8 Years

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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)

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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.

GM Duramax LB7 - Intercooler Pipe & Boot Kit (2002–2004)

Bring new life to your LB7 with this high-flow Intercooler Pipe & Boot Kit. The factory intercooler piping on 2002–2004 Duramax trucks is known for its tight bends and restrictive flow—limiting performance and raising EGTs. This kit replaces those weak links with polished 3” aluminum pipes and heavy-duty silicone boots designed to move more air, run cooler, and hold strong under boost.

Key Features:

  • Polished 3" Aluminum Piping: Larger diameter with smoother bends for improved airflow and better turbo response.
  • Silicone Couplers: Multi-layered, oil-resistant, and built to handle extreme heat and high boost pressure without cracking or failing.
  • Increased Performance: Reduced restriction helps lower EGTs and supports better horsepower and torque gains—especially on tuned trucks.
  • Complete Hardware Kit: Comes with everything needed for installation—no additional parts required.

Restore Flow. Reduce Temps. Boost Power.

This upgrade is about more than just looks—though the polished finish does add a clean, aggressive touch under the hood. By removing airflow bottlenecks and sealing with quality silicone boots, this Intercooler Pipe & Boot Kit delivers noticeable gains in throttle response, cooler running temps, and long-term reliability.

Compatibility:

  • 2002 GMC Sierra 2500HD/3500HD 6.6L Duramax LB7
  • 2003 GMC Sierra 2500HD/3500HD 6.6L Duramax LB7
  • 2004 GMC Sierra 2500HD/3500HD 6.6L Duramax LB7
  • 2002 Chevy Silverado 2500HD/3500HD 6.6L Duramax LB7
  • 2003 Chevy Silverado 2500HD/3500HD 6.6L Duramax LB7
  • 2004 Chevy Silverado 2500HD/3500HD 6.6L Duramax LB7

Serious Airflow for the Original Duramax

Whether you're rebuilding an LB7 or dialing in a tuned setup, this Intercooler Pipe & Boot Kit is a reliable performance upgrade. Better flow. Lower temps. Stronger pulls. It’s everything your early Duramax needs to stay competitive.

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.

Shipping Policy at Tuner Depot

At Tuner Depot, we understand the importance of timely delivery for your performance parts. We're committed to ensuring a seamless shipping experience, striving to dispatch your orders with utmost efficiency and speed.

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.
  • Staff Availability: Unforeseen circumstances can occasionally affect our staffing levels, possibly leading to minor delays. We are committed to swiftly resolving any issues to maintain our high standards of service.
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.