6.6L Duramax L5P Intercooler Pipe & Boot Kit | 3-inch Piping | Chevy & GMC 2500HD/3500HD | 2017–2019
Type: Intercooler Pipe
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Replace the hot-side and cold-side charge pipes on a 2017–2019 L5P with this 3-inch piping and boot kit. Each side uses a two-piece layout, with silicone connections and constant-tension clamps supplied for assembly.
Vehicle fitment
2017–2019 Chevrolet Silverado/GMC Sierra 2500HD and 3500HD, 6.6L Duramax L5P. Excludes 2020+ and earlier Duramax families.
Specifications
| Specification | Details |
|---|---|
| Pipe diameter | 3 inches |
| Layout | Two-piece hot side and two-piece cold side |
| Couplers | Silicone with protective inner liner |
| Clamps | Constant-tension T-bolt |
| Sensor provisions | Two drill-and-tap bungs |
What is included
- Hot-side and cold-side pipe assemblies
- Silicone boots and T-bolt clamps
- Cold-side quick-disconnect O-ring and spring clip
Before installation
Transfer the factory IAT sensor and harness as instructed. The supplier specifies no calibration change for this piping replacement alone.
Frequently asked questions
Is the intercooler itself supplied?
No. The kit covers the connecting pipes, boots and clamps.
Can I use this on a 2020 L5P?
No. This piping layout is specific to the 2017–2019 application.
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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.
