6.6L L5P Duramax 4" DPF & CAT Delete Race Pipe for 2017-2023 Chevy Silverado & GMC Sierra 2500HD 3500HD

SKU: XKV51058
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Fitment & Specs
Fits listed 2017-2023 Chevy Silverado and GMC Sierra 2500HD and 3500HD Crew Cab pickup trucks with the 6.6L L5P Duramax engine, including listed short-bed and long-bed configurations. Does not fit 3500, 4500, or 5500 Cab & Chassis commercial trucks.
4" Inlet
T-409 Stainless Steel · Application-Specific Pipe Installation; Cutting or Trimming May Be Required; Professional Installation Recommended
Before You Buy: Off-road/racing use only · Professional install recommended · Compatible Tuning Required; Not Included
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Description

This 4-inch DPF and CAT delete race pipe is designed for listed 2017-2023 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD Crew Cab pickup trucks equipped with the 6.6L L5P Duramax diesel engine.

Constructed from T-409 stainless steel with a 1.5 mm wall thickness, the system features mandrel-bent pipe construction, a 4-inch inlet, and an OEM-style 4-bolt flange connection. Compatible tuning is required for installation and is not included.

Key Details

  • Fitment: Listed 2017-2023 Chevrolet Silverado and GMC Sierra 2500HD / 3500HD Crew Cab pickup applications
  • Engine: 6.6L L5P Duramax Diesel
  • Product Type: DPF & CAT Delete Race Pipe
  • Pipe Diameter: 4.0"
  • Inlet Diameter: 4.0"
  • Wall Thickness: 1.5 mm
  • Material: T-409 Stainless Steel
  • Construction: Mandrel-Bent Pipe
  • Front Connection: OEM-Style 4-Bolt Flange
  • Supported Configurations: Crew Cab Short Bed and Crew Cab Long Bed
  • Tuning: Compatible tuning required; not included
  • Installation: Professional installation is recommended

Fitment

Confirm the exact year, model, engine, cab configuration, bed length, wheelbase, and factory exhaust layout before purchase.

Vehicle Year Engine Cab / Bed Configuration
Chevrolet Silverado 2500HD 2017-2023 6.6L L5P Duramax Diesel Crew Cab Short Bed / Long Bed
Chevrolet Silverado 3500HD 2017-2023 6.6L L5P Duramax Diesel Crew Cab Short Bed / Long Bed
GMC Sierra 2500HD 2017-2023 6.6L L5P Duramax Diesel Crew Cab Short Bed / Long Bed
GMC Sierra 3500HD 2017-2023 6.6L L5P Duramax Diesel Crew Cab Short Bed / Long Bed
Fitment Note: Fits listed Crew Cab short-bed and long-bed pickup configurations. This product does not fit 3500, 4500, or 5500 Cab & Chassis commercial-style trucks. A Silverado or Sierra 3500HD pickup is different from a 3500 Cab & Chassis configuration.

Installation Guide

The installation document linked below may reference a broader L5P year range. XKV51058 is sold and represented only for the confirmed 2017-2023 applications listed on this page.

View the L5P 4" Race Pipe Installation Guide

Package Includes

DPF and CAT delete race pipe components, clamps, hangers, and installation hardware are supplied as shown in the product images. Compare all received components with the product photos and vehicle before beginning installation. Some factory hardware may need to be reused depending on the vehicle configuration.

Installation Notes

  • Compatible tuning or ECU calibration is required and is not included with this product.
  • Professional installation is recommended.
  • Cutting or trimming may be required depending on wheelbase, cab and bed configuration, and factory exhaust layout.
  • Verify the OEM-style 4-bolt flange, factory exhaust routing, sensor configuration, mounting points, hangers, and pipe connections before installation.
  • Test fit all pipe sections, clamps, hangers, and connection points before final tightening.
  • Factory hardware may need to be reused depending on the installation configuration.
  • Existing exhaust modifications, previous repairs, corrosion, or non-factory components may affect installation.
  • Inspect all connections for exhaust leaks after installation and recheck clamps and fasteners after the initial heat cycles where appropriate.

Before You Buy

  • This product fits only the listed 2017-2023 Chevrolet Silverado and GMC Sierra 2500HD / 3500HD Crew Cab pickup applications equipped with the 6.6L L5P Duramax engine.
  • This product does not fit 3500, 4500, or 5500 Cab & Chassis commercial-style trucks.
  • This is a 4-inch DPF and CAT delete race pipe. It is not a complete exhaust system, cat-back exhaust, downpipe, EGR delete kit, tuner, or universal exhaust pipe.
  • Verify the exact year, model, engine, cab configuration, bed length, wheelbase, factory exhaust layout, sensor configuration, connection points, package contents, and tuning requirements before purchase.
  • This product removes or replaces emissions-related exhaust components.
  • This product is not represented as street legal, emissions-compliant, CARB-compliant, or legal for public-road use.
  • Sale, installation, and use must comply with all applicable federal, state, and local laws.
  • Horsepower, torque, fuel economy, exhaust temperature, turbo response, reliability, and drivability changes are not guaranteed and may vary according to vehicle condition, calibration, installation, and supporting components.
Shipping & Return

SHIPPING & DELIVERY
Fast Processing & Reliable Transit

  • Processing: Orders are processed and shipped from the nearest available warehouse within 1 business day after payment.
  • Delivery: Estimated delivery time is approximately 3–4 business days after shipment.
  • Shipping - Free shipping on all orders within the contiguous 48 U.S. states.

RETURNS & EXCHANGES
30-Day Hassle-Free Policy

  • Return Window: We offer a 30-day return policy from the date of delivery.
  • Item Condition: Returned items should be unused, uninstalled, and in their original packaging when possible.
  • Return Process: To initiate a return or exchange, please contact our customer service team first to receive authorization and instructions.

WARRANTY
2-Year Limited Replacement Warranty

  • Duration: All products are backed by a 2-year limited warranty.
  • Coverage: This warranty covers manufacturing defects and product failures under normal use, and provides a replacement for qualified cases (repairs are not performed).

CUSTOMER SUPPORT
We’re Here to Help – Contact Us First

  • Priority Contact: For any order-related issues—including returns, warranty claims, or general inquiries—please contact us first before taking further action. We are committed to resolving your concern promptly.
  • Feedback Notice: If you are unsatisfied, we kindly ask that you allow us an opportunity to address the issue before leaving neutral or negative feedback.
  • Email Support: You can reach us at support@XKVracing.com.

What Is a DPF and Why Is It Used?

A Diesel Particulate Filter (DPF) is part of the emissions system found on many modern diesel vehicles. Its job is to capture soot and particulate matter from the exhaust before it exits the vehicle.

Depending on driving habits, operating conditions, and mileage, a DPF system can gradually become restricted as soot accumulates. Over time, this may affect how the vehicle operates and how often maintenance is required.

Common signs associated with DPF-related restrictions can include:

Frequent regeneration cycles

Warning lights or reduced performance modes

Increased exhaust back pressure over time

Maintenance or replacement considerations on high-mileage vehicles

About DPF Replacement Components

DPF-related exhaust components are typically intended for specific use cases such as off-road applications, racing vehicles, export markets, or as part of a complete emissions system service or replacement process.

These components are designed to work with compatible exhaust configurations and should only be installed and used in compliance with applicable local, state, and federal regulations.

Who Should Consider This Type of Product?

Off-road or competition vehicle owners

Vehicles used in controlled environments

Export or non-U.S. applications

Customers performing emissions system service or replacement

FAST SHIPPING

Ships within 1 business day after payment
3–4 business day delivery

Secure and reliable Checkout

Secure checkout with major payment options

LOCAL WAREHOUSE

Orders ship from U.S. warehouses when available

Easy Returns and Exchanges

30-day returns for eligible unused items

Parts Warranty

Warranty support for qualified manufacturing defects

Important Notice

Products in this category are intended for off-road, racing, or closed-course use where emissions laws apply. They are not represented as street legal, emissions-compliant, CARB-compliant, or legal for use on public roads unless explicitly stated.

DPF delete, CAT delete, race pipe, or related diesel exhaust products may remove, replace, disable, or alter emissions-related components, including but not limited to DPF, catalytic converter, SCR, DOC, EGR, sensors, or related factory systems. Compatible tuning, calibration, or supporting modifications may be required to avoid engine codes, limp mode, regeneration issues, or drivability problems.

Professional installation is recommended. Buyers are responsible for verifying vehicle compatibility, local regulations, emissions requirements, sensor configuration, exhaust layout, and any required tuning or supporting modifications before purchase and installation.

Performance gains, sound changes, airflow changes, temperature changes, fuel economy changes, reliability results, fitment, and drivability results may vary. No specific performance gains, fuel economy improvements, or long-term reliability results are guaranteed.

DPF Delete & Race Pipe FAQs

What is a DPF delete pipe? +

A DPF delete pipe is an exhaust component designed to replace or bypass the factory Diesel Particulate Filter section on compatible diesel vehicles. Product design and included components vary by SKU, vehicle platform, exhaust layout, and emissions configuration.

What is the difference between a DPF delete pipe and a CAT delete race pipe? +

A DPF delete pipe relates to the Diesel Particulate Filter section, while a CAT delete or race pipe may relate to the catalytic converter section or a combined emissions-related exhaust section. Some products replace multiple factory components. Always check the product title, fitment table, package list, and installation notes before ordering.

Do DPF delete products require tuning? +

Compatible tuning or calibration is typically required when the DPF, catalytic converter, sensors, or related emissions components are removed, replaced, disabled, or altered. Without the required supporting calibration, the vehicle may trigger warning lights, engine codes, limp mode, regeneration issues, or drivability problems.

Are DPF delete pipes street legal? +

DPF delete, CAT delete, and race pipe products may alter or disable factory emissions-related equipment and are generally intended for off-road, racing, or closed-course use where emissions laws apply. They are not represented as street legal, emissions-compliant, CARB-compliant, or legal for public road use unless explicitly stated. Buyers should check applicable regulations before purchase and installation.

Will a DPF delete increase horsepower or torque? +

Horsepower, torque, throttle response, towing performance, and exhaust gas temperature results are not guaranteed. Results vary by vehicle condition, tuning, installation quality, fuel, turbo setup, exhaust configuration, supporting modifications, and use case.

Will a DPF delete improve fuel economy? +

Fuel economy changes are not guaranteed. Any change depends on tuning, driving style, load, gearing, vehicle condition, tire size, exhaust configuration, and supporting modifications. No specific MPG improvement is promised.

Will a DPF delete trigger a check engine light? +

It may. Removing, replacing, disabling, or altering DPF, CAT, SCR, DOC, sensor, or regeneration-related components can trigger warning lights, engine codes, limp mode, or drivability issues without compatible tuning or calibration. Always verify the required supporting calibration before installation.

Is a DPF delete the same as an EGR delete? +

No. A DPF delete relates to the Diesel Particulate Filter section of the exhaust system, while an EGR delete relates to the Exhaust Gas Recirculation system. Some vehicle builds may involve multiple emissions-related components, but each product should be verified by its own fitment, package list, and tuning requirements.

Can I install a DPF delete pipe myself? +

Installation difficulty varies by vehicle and exhaust layout. DPF-related exhaust products may involve rusted hardware, heavy exhaust sections, sensors, clamps, flanges, tight underbody clearance, and required tuning or calibration. Professional installation is recommended.

Does every DPF delete kit include the same parts? +

No. Package contents vary by vehicle and SKU. Some products may include a single race pipe, while others may include clamps, hangers, adapters, sensor provisions, gaskets, or related hardware. Always check the product photos, package list, and fitment notes before ordering.

What should I verify before buying a DPF delete or race pipe? +

Verify your year, make, model, engine, emissions configuration, exhaust layout, pipe diameter, cab and bed configuration, sensor setup, tuning or calibration requirements, included components, and applicable regulations before purchase.