PPE OEM-Length Replacement High-Flow Up-Pipe Kit (2001-2004 FED / 2001 CA GM 6.6L Duramax) - (116120000
Overview
PPE's OEM-Length Replacement High-Flow Up-Pipe Kit is designed to upgrade the restrictive factory up-pipes found on 2001-2004 Federal-emissions Duramax engines and 2001 California models. Built to improve exhaust flow and restore turbocharger efficiency, this kit offers a durable, direct-fit solution for aging or leaking OEM components.
Improved Exhaust Flow
The factory up-pipes are known for their narrow passages and corrosion-prone construction, which can limit airflow and increase pumping losses. PPE addresses these issues with a high-flow design that enlarges the OEM bottleneck and removes the tight bends, resulting in up to a 46% increase in exhaust flow.
Durable Stainless Steel Construction
Each up-pipe is manufactured from premium stainless steel and features a three-layer, internally sleeved bellow designed to withstand high temperatures and pressure cycles. This robust construction ensures long-term reliability and smoother exhaust movement.
Direct Bolt-On Replacement
These up-pipes bolt directly to the OEM exhaust manifolds with no modifications required. PPE also includes stainless steel gaskets to ensure a clean, leak-free installation.
Key Features
- Up to 46% larger flow area compared to stock
- High-flow design reduces restriction and improves turbo efficiency
- Premium stainless steel construction
- Three-layer internally sleeved exhaust bellow
- Includes stainless steel up-pipe gaskets
- Direct bolt-on replacement for OEM up-pipes
- GTIN: 840171209372
Application
- 2004 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2004 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2004 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2004 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2003 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2003 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2003 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2003 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2002 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2002 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2002 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2002 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2001 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2001 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2001 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2001 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

