Wehrli Custom Fabrication WCF100535-SC Intake Horn for 2011-2016 GM Duramax LML

The Wehrli Custom Fabrication WCF100535-SC intake horn is a high-performance upgrade designed to maximize airflow into your 2011-2016 GM Duramax LML engine. This precision-engineered intake horn replaces the restrictive factory component, creating a smoother, less turbulent path for air entering the turbocharger compressor.

Key Features:

• Mandrel-bent aluminum construction for maximum durability and consistent internal diameter
• Powder-coated finish resists corrosion and heat while providing a clean, professional appearance
• Optimized internal geometry reduces intake restriction and improves turbo efficiency
• Direct bolt-on replacement for OEM intake horn—no modifications required
• Includes all necessary hardware and silicone couplers for complete installation
• Compatible with stock and aftermarket air intake systems

By eliminating the restrictions of the stock intake horn, this upgrade allows your turbocharger to spool more efficiently, resulting in improved throttle response and better overall engine performance. The smooth mandrel bends reduce turbulence and allow for maximum airflow, making this an essential upgrade for both daily drivers and performance builds.