The WCFab L5P 4-inch high-flow cast-aluminum turbo intake horn for 2017–2025 Chevrolet Silverado and GMC 2500/3500 HD trucks with the 6.6L Duramax replaces the restrictive OEM plastic inlet to increase airflow to the turbocharger for improved engine response. It includes a billet aluminum PCV port, O-ring turbo seal, and bolts on with no tuning required. CNC cast construction and custom powdercoat finish provide durability; the inlet is about 25% larger and flows roughly 27% better than stock. Also compatible with L5D 6.6L Duramax medium-duty 2019–2024 trucks.
Wehrli 17-24 Duramax L5P High Flow Intake Horn - Sparkle Bomber Orange