2017-2022 GM/CHEVROLET 6.6L DURAMAX TURBO EXHAUST DOWN PIPE - NON-DOC PROVISION
The 2017-2022 GM/Chevrolet 6.6L Duramax Turbo Exhaust Downpipe - Non-DOC Provision is a high-performance aftermarket exhaust component designed to replace the restrictive factory downpipe in GM and Chevrolet trucks equipped with the 6.6L Duramax diesel engine. This downpipe features a larger diameter, mandrel-bent construction, and is crafted from premium materials like stainless steel for durability and corrosion resistance. It is specifically designed for non-DOC (Diesel Oxidation Catalyst) applications, making it ideal for off-road or racing upgraded trucks. By improving exhaust flow and reducing backpressure, this downpipe enhances turbo performance, increases horsepower and torque, and lowers exhaust gas temperatures (EGT).
This downpipe is compatible with 2017-2022 GM/Chevrolet 2500HD and 3500HD trucks, ensuring a perfect fit and seamless installation. Whether you’re towing heavy loads, off-roading, or seeking better throttle response, this turbo downpipe is a must-have upgrade for Duramax owners. Must be installed and tuned by a Licensed Diesel Mechanic as this does not come with instruction.
Features:
- 3.5" Stainless Steel Piping
- 20% better flow than the factory pipe
- Heat-wrap included keeping engine bay temperatures down
- Greater heat-retention
- Will not affect emissions systems
- Maximum flow for competition applications
- 4-bolt flange, two studs installed
The 2017-2022 GM/Chevrolet 6.6L Duramax Turbo Exhaust Downpipe - Non-DOC Provision is compatible with the following vehicles:
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2017-2022 Chevrolet Silverado 2500HD (6.6L Duramax)
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2017-2022 Chevrolet Silverado 3500HD (6.6L Duramax)
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2017-2022 GMC Sierra 2500HD (6.6L Duramax)
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2017-2022 GMC Sierra 3500HD (6.6L Duramax)
*Off-road use only. Custom tuning required*
**⚠California Proposition 65 Warning: Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm.
Visit: www.p65warnings.ca.gov
Big Dawg Diesel Disclaimer:
This is a race-only product. It is not legal for sale or use on pollution controlled vehicles that are driven on public streets, roads, or highways. Buyer's use or installation of this product for itself or for Buyer's customer is at Buyer's own risk. The Buyer is responsible for obeying federal, state, and local laws. Only Buyer can determine end customer's use and thus assumes any and all liability hereby waiving any and all claims against Big Dawg Diesel in the sale of this product to the maximum extent permissible by law. Make sure to abide by all local, state, and federal laws, including emissions, vehicle safety, and traffic laws. It is Buyer's responsibility to know what those laws are and how they apply to Buyer or Buyer's customer. This product is designed and intended solely for legally organized and sanctioned, closed-course, off-road competition use and is not for use on public streets, roads, or highways. This product is capable of disabling the emissions system on some vehicles. Use on public streets, roads, or highways is a violation of federal and certain state (including California) and local environmental laws.
