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The WCFab 4" intake kit for 2017–2019 Duramax L5P 6.6L is a fabricated aluminum intake and air box that replaces restrictive factory plastic to improve airflow, throttle response and torque. Large‑diameter 4" piping with smooth bends draws cold air via the hood ram air duct and inner fender. The kit includes a dry filter with hydrophobic pre‑filter cover, silicone boot, stainless t‑bolt clamps and high‑quality hardware for a bolt‑on installation with no tuning required.
Wehrli 17-19 Chevrolet 6.6L L5P Duramax 4in Intake Kit - Bengal Silver
