6.6L Duramax L5P Stainless Up-Pipes | Chevy & GMC | 2017–2024
Type: Up-Pipes | Fits: GM Duramax
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Increase flow. Reduce heat. Eliminate factory weak points. These 2” stainless steel up-pipes are engineered for 2017–2024 6.6L Duramax L5P trucks, replacing the restrictive factory 1-5/8” piping. Built for improved exhaust flow and long-term durability, this upgrade supports faster turbo response and lower exhaust gas temperatures in performance and off-road applications.
Vehicle fitment
- 2017–2024 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD with 6.6L Duramax L5P.
Specifications
| Specification | Details |
|---|---|
| Material | 11-gauge 304 stainless steel |
| Bellows | Internally sleeved 304 stainless steel |
| Gaskets | 301 stainless steel |
| Length | OEM-length replacement |
| Factory emissions equipment | Designed to retain compatibility |
What is included
- Replacement up-pipes
- Stainless steel gaskets
Before installation
- Professional installation is recommended because access around the turbo is restricted.
- Verify the connections and clearances for the existing turbo and manifolds.
Frequently asked questions
Is an EGR delete required for these up-pipes?
The supplier describes these as compatible with factory emissions equipment, so an EGR delete is not a stated requirement.
Do they fit the stock turbo connections?
They are OEM-length replacements for the factory turbo and exhaust-manifold connections.
Important Notes:
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TARIFF NOTICE:
While we ship with all required USMCA/CUSMA paperwork, U.S. Customs or carriers may still apply duties or fees at delivery. For details, see U.S. Customs & Border Protection
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Return Policies
Your satisfaction is important to us. If you wish to return an item or request a refund, please review the terms and conditions outlined in our Returns Policy.
Important Notices
- Off‑Road Use Only
Products sold by JS Speed are intended for off‑road use and may be illegal on public roads where emissions or pollution‑control laws apply. - Check Local Laws
Before purchasing or installing, verify all applicable local, state/provincial, and federal regulations to ensure the modification is legal in your area. - Professional Installation Recommended
These parts should be installed by qualified professional mechanics. Improper installation can cause performance issues or vehicle damage. Unless a product page explicitly states otherwise, installation instructions are not included. Components are designed for users with solid mechanical knowledge, and minor adjustments or modifications may be required for proper fitment. Returns or refunds cannot be accepted due to difficulty completing an installation or the absence of instructions. - Warranty Impact
Use of these parts may void your vehicle’s factory warranty. Confirm with your vehicle manufacturer before purchase and installation. - Limitation of Liability
JS Speed is not responsible for damage, failures, or issues arising from the use or installation of these products. - Product Images
Images are for illustration only and may differ from the actual product due to manufacturer updates or improvements. - No Performance Guarantees
While these products are designed to enhance performance, JS Speed does not guarantee specific performance results.
6.6L Duramax L5P Stainless Up-Pipes | Chevy & GMC | 2017–2024
Vehicle Fitment
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