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The WCFab 4" high-flow cast aluminum turbo intake horn for 2001–2004 Duramax LB7 6.6L trucks replaces the restrictive OEM turbo mouthpiece to improve airflow to the turbocharger. Precision-cast and CNC finished, it delivers a smooth transition to the compressor cover and flows about 40% more than stock. Compatible with stock and OEM-style aftermarket drop-in turbos that accept a 4" boot, it bolts on with included hardware and is powder-coated in your choice of color.
Wehrli 01-04 Duramax LB7 4in High Flow Intake Horn - Gloss White
