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WCFab 4-inch high-flow cast aluminum turbo intake horn for 2017–2025 Chevrolet Silverado and GMC 2500/3500 HD trucks equipped with the 6.6L Duramax (L5P). It replaces the restrictive OEM plastic inlet to increase airflow and durability, includes a billet aluminum #10 ORB port for PCV connection, O-ring seal at the turbo face and ships with mounting hardware. CNC-cast construction, custom powder coat, made in USA; offers roughly 25% greater flow area and flows about 27% better than stock.
Wehrli 17-24 L5P Duramax High Flow Cast Turbo Intake Horn
