PPE High-Flow Up-Pipes for 2001-2004 Silverado/Sierra 2500HD/3500HD Duramax - 116120000

Key Features & Specs:

• High-flow up-pipe kit for 6.6L Duramax diesel engines
• Increases exhaust flow area by up to 46% over stock
• Eliminates restrictive OEM bottlenecks and tight bends
• Improves turbocharger efficiency and response
• Reduces exhaust back-pressure and pumping losses
• Constructed from premium stainless steel for durability and corrosion resistance
• Three-layer internally sleeved exhaust bellow for strength and longevity
• Includes stainless steel gaskets for leak-free installation
• Direct bolt-on replacement
• OEM reference: GM 97223167, 9722316

Fitment:

• 2001-2004 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax
• 2001-2004 GMC Sierra 2500HD / 3500HD 6.6L Duramax

Upgrade your Duramax exhaust system with the Pacific Performance Engineering (PPE) High-Flow Up-Pipe Kit, designed for 2001-2004 GM 6.6L Duramax trucks. Engineered to eliminate restrictive factory bottlenecks, this kit increases exhaust flow by up to 46%, improving turbocharger efficiency and reducing pumping losses. Constructed from premium stainless steel, these up-pipes feature a high-flow design with smoother bends and a three-layer internally sleeved exhaust bellow for enhanced durability and flexibility under extreme conditions. As a direct bolt-on replacement, this kit includes stainless steel gaskets for a seamless installation and long-lasting performance.