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The Wehrli 4" intake kit for 2017–2019 Duramax L5P 6.6L replaces restrictive factory plastic parts with a fabricated aluminum 4" intake and sealed air box with dry filter. It pulls cold air via the hood ram duct and inner fender, improving airflow, intake temperatures, and throttle response without requiring tuning. Includes silicone boot, stainless t-bolt clamps, pre-filter cover, and is compatible with stock trucks as a bolt-on upgrade.
Wehrli 17-19 Chevrolet 6.6L L5P Duramax 4in Intake Kit - Illusion Blueberry
