Improve intake airflow on your 2006-2010 Chevrolet Silverado or GMC Sierra equipped with the 6.6L Duramax LBZ or LMM engine using the Wehrli Custom Fab WCF100412-RED Intake Horn. Designed for VGT turbo applications, this high-flow intake horn features a large 4.8-inch inlet to support efficient air delivery and complement a compatible WCFab intake system. Its red single-stage powder-coated finish adds durable protection and a clean, performance-oriented appearance.
The Wehrli intake horn is constructed from cast aluminum and includes a silicone reducer boot, stainless steel T-bolt clamps, an O-ring seal, and a PCV port for a secure, reliable installation. It eliminates the factory resonator connection and is designed to work with intake systems that connect using a removable boot and two clamps. It is not compatible with OEM or aftermarket intake systems where the boot connection is permanently molded into the intake pipe.
Made in the USA, the WCF100412-RED is engineered as a direct complement to select Wehrli Custom Fab intake kits for LBZ and LMM Duramax applications. Verify your existing intake configuration and vehicle fitment before ordering. This product is EPA compliant; however, it is not CARB approved and may not be legal for use in emissions-controlled applications requiring CARB certification. California Proposition 65 warnings may apply.
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