PPE Replacement Up-Pipe (Passenger Side) for OEM Exhaust Manifold 11-16 GM 6.6L Duramax LML

Has your current up-pipe cracked or causing high exhaust back-pressure and slow turbo spool? The PPE Replacement Up‑Pipe for 6.6L Duramax is the upgrade your truck has been waiting for. This high-flow up-pipe dramatically improves your exhaust flow compared to the restrictive factory piping. Whether you’re building for towing power, performance, or reliability on the highway and trail, this up-pipe provides a noticeable performance enhancement over stock components. By reducing back-pressure and allowing turbochargers to spool faster it helps deliver sharper throttle response, lower exhaust temperatures, and a more efficient exhaust path. This up-pipe is expertly crafted with heavy-duty 11-gauge 304 stainless steel and features a free-flowing inner liner below that withstands high heat and pressure while resisting corrosion and fatigue. The thick .120-inch wall tubing and 2-inch outer diameter create an open, unrestricted pathway for exhaust gases, reducing thermal load and improving turbocharger efficiency. Precision manufacturing ensures a direct bolt-on replacement to compatible exhaust manifolds without modification, making installation straightforward. By moving to a more efficient, durable stainless steel design, this up-pipe not only improves performance but also extends the life of your Duramax’s exhaust system.