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The Wehrli Custom Fab Stage 3 High Flow Bundle Kit for 2017–2019 Duramax L5P replaces restrictive factory intake and intercooler piping and includes a 4-inch intake pipe, airbox with dry filter and pre‑filter cover, larger intercooler pipes, and a 3.5-inch ceramic coated downpipe. Built from heavy‑duty aluminum with silicone boots and stainless clamps, it improves flow and retains factory sensor and connection points.
Wehrli 17-19 6.6L Duramax L5P Stage 3 High Flow Bundle Kit - Candy Red
