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The Wehrli Custom Fab Stage 3 High Flow Bundle for 2017–2019 Duramax L5P combines upgraded intake, intercooler piping, and a 3.5 in. ceramic‑coated downpipe into one kit. Featuring 4 in. aluminum intake tubing, reinforced silicone boots, stainless t‑bolt clamps, CNC machined flanges with double O‑rings, and a removable airbox lid with pre‑filter, it improves airflow and thermal efficiency; no tuning is required and components are made in the USA.
Wehrli 17-19 Chevrolet L5P Duramax High Flow Intake Bundle Kit - Kiwi
