2017-2025 Duramax L5P High Flow Exhaust Manifolds With Up-Pipes - PPE

Replace and upgrade your exhaust manifold and up-pipes in your L5P Duramax with these PPE High-Flow Manifolds made from cast, high-sil moly. The PPE Up-Pipe bellows are internally-sleeved, made from aircraft-grade 304 stainless steel and designed with an increased inner diameter for higher flow. The entire Manifold and Up-Pipe exhaust system is designed to maximize power and flow characteristics, lower exhaust gas temperatures (EGTs) and accelerate turbo spool-up while increasing power, fuel economy, and maintain reliability