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  • For Off-Road Use Only
    Black Bandit Delete Pipe GM Duramax 6.6L Downpipe-Back Race Exhaust (2011-2015)
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GM Duramax 6.6L Downpipe-Back Race Exhaust (2011-2015)

Sku: ESSS-GM-11-4

This product fits:

2011-2015 Chevy Duramax LML 6.6L Silverado 2500HD / 3500HD Pickup
2011-2015 GMC Duramax LML 6.6L Sierra 2500HD / 3500HD Pickup
Does not fit late-model 2015 trucks with a 3-bolt flange
$786.50
$550.00
-30%
Shipping calculated at checkout.
Size: 4" System

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

Click here to find the right tuner for your truck!
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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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Please note: All sales of exhaust pipes, straight pipes, and engine pipes are final and Non-Returnable and Non-Refundable

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 4" or 5" Downpipe-Back Race Exhaust System is specially designed for 2011-2015 Chevrolet Silverado and GMC Sierra 2500/3500HD models with the 6.6L Duramax LML engine.

However, it does not fit Cab & Chassis trucks or late-model 2015 trucks with a 3-bolt flange. Always ensure you verify fitment before purchase.

Performance and Application

By removing both the catalytic converter and DPF filter, this system enhances exhaust flow significantly. As a result, you will notice improved fuel efficiency and greater engine power. The larger 4" or 5" stainless steel piping ensures better airflow, reducing exhaust gas temperatures. Moreover, the straight-through design helps maximize flow, making it perfect for off-road and competition use.

Features

This race exhaust system offers several advantages, especially for Duramax owners looking to boost performance:

  • Durable stainless steel piping to withstand harsh conditions
  • Available in 4" or 5" diameters to match different performance requirements
  • OE-style hangers provide an easy, secure installation
  • Straight-through design maximizes exhaust flow, helping the engine perform efficiently
  • No bungs, making this system ideal for off-road applications and competitions

Installation Considerations

The Duramax LML 4" Race Exhaust system is intended for off-road use only and requires race tuning to deliver optimal performance. The package includes all necessary hardware and clamps for easy installation. While you can install it yourself, professional installation is recommended for the best fit and tuning results. Some modifications may be required based on your vehicle configuration.

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.