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The Wehrli WCFab LB7 4-inch high-flow intake horn for 2001-2004 Chevrolet Silverado and GMC 2500/3500 with the 6.6L LB7 Duramax replaces the restrictive OEM turbo mouthpiece to increase airflow, throttle response and quicker spool. CNC machined cast aluminum with an O-ring seal and smooth transition flows about 40% better than stock. Bolt-on, no tuning required; compatible with IHI drop-in turbos and 4" aftermarket intakes. Candy teal powder-coat finish; Made in USA. Not compatible with molded OEM intakes.
Wehrli 01-04 Duramax LB7 4in High Flow Intake Horn - Candy Teal
