FS 2017-2025 Duramax High Flow Manifold & Up Pipe Kit

Description: The Full Speed Diesel Performance FS578 High Flow Manifold and Up Pipe Kit is engineered for the 2017–2025 GM Duramax L5P. The factory exhaust manifold and up pipe are a common failure point on these trucks — cracking, leaking, and costing you power and reliability. This complete kit replaces both with high flow components designed to improve exhaust scavenging, reduce EGTs, and restore confidence under load. Features & Details: Fits 2017–2025 GM Duramax L5P High flow manifold design for improved exhaust scavenging and reduced EGTs Includes high flow exhaust manifold, up pipe, gasket, and stainless steel installation hardware Complete bolt-on kit — everything needed for installation Heavy-duty construction to resist cracking and warping