PPE High-Flow Exhaust Manifold & Up-Pipe Kit - Raw Finish (2017-2026 GM 6.6L Duramax) - (116112500
Overview
The factory exhaust manifold and up-pipe setup on the 2017-2026 GM 6.6L Duramax can create unnecessary back-pressure and elevated EGTs. PPE's High-Flow Exhaust Manifold and Up-Pipe Kit replaces these restrictive components with a stronger, smoother-flowing system designed to improve turbo efficiency, reduce heat, and support higher performance demands.
High-Flow Manifold Construction
The PPE manifold is cast from high-sil moly iron for exceptional strength and heat resistance. Its improved internal geometry promotes better exhaust flow, helping lower EGTs and improving turbo spool-up. A ceramic-coated version is also available for those seeking additional thermal control and long-term corrosion protection.
Free-Flow Up-Pipe Design
The included up-pipes feature two-inch free-flow tubing with internally sleeved bellows made from aircraft-grade 304 stainless steel. This design increases flow capacity, reduces turbulence, and maintains durability under high heat and high boost conditions. The up-pipes are compatible with factory heat shields for a clean, OEM-style installation.
Performance & Reliability Benefits
Together, the manifold and up-pipe system is engineered to maximize exhaust flow, reduce thermal load, and improve overall engine efficiency. The result is quicker turbo response, lower EGTs, and more consistent performance whether towing, daily driving, or running performance upgrades.
Key Features
- Significant reduction in exhaust back-pressure
- Lower EGTs and improved turbo efficiency
- High-sil moly cast iron manifold for durability
- Two-inch free-flow up-pipes with internally sleeved bellows
- Up-pipes compatible with factory heat shields
- High-temp coated exhaust manifold gaskets included
- Upper and lower up-pipe gaskets included
- Includes manifold bolts, studs, and spacers
- GTIN: 840171209082
Optional Ceramic Coating
PPE's ceramic coating option enhances heat management by creating a thermal barrier that reduces surface temperatures and slows heat absorption. This improves flow efficiency, lowers EGTs even further, and provides long-lasting protection against corrosion, chemicals, and road debris. It also keeps the manifold looking clean for years to come.
Upgrade Path
Pair this kit with a PPE 3-inch 304 stainless steel downpipe for a complete high-flow exhaust solution. For maximum performance, combine with PPE's 304 stainless up-pipe kit and ceramic-coated manifold option.
Application
- 2026 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2026 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2026 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2026 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2025 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2025 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2025 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2025 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2024 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2024 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2024 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2024 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2023 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2023 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2023 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2023 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2022 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2022 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2022 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2022 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2021 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2021 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2021 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2021 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2020 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2020 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2020 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2020 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2019 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2019 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2019 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2019 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2018 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2018 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2018 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2018 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2017 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2017 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2017 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2017 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
