Wehrli Custom Fabrication WCF100417-IP High Flow Turbo Intake Horn 2011-2016 LML Duramax Illusion Purple

The Wehrli Custom Fabrication High Flow Turbo Intake Horn replaces the restrictive factory plastic inlet on 2011-2016 LML Duramax engines, delivering a 5.6% improvement in airflow over stock for enhanced performance and throttle response. This precision-engineered intake horn features a 4.8-inch inlet—the largest on the market—maximizing air delivery to your turbocharger.

Key Features:

• CNC machined cast aluminum construction for superior durability and heat dissipation
• 4.8-inch inlet diameter provides maximum airflow to turbocharger
• Integrated PCV port for proper crankcase ventilation
• Eliminates restrictive factory resonator for improved turbo sound
• Custom Illusion Purple powder coat finish for distinctive appearance
• Includes silicone reducer boot, stainless steel T-bolt clamps, O-ring seal, and EGR gaskets
• Made in the USA with premium materials and craftsmanship

This intake horn is designed to complement Wehrli's Stage 1 LML intake kits and replaces GM part numbers 12642296 and 12637801. Requires an intake system that uses a silicone boot connection with 4-inch boot and clamp compatibility. Not compatible with intakes featuring molded rubber connections or aftermarket Y-bridges that relocate the manifold inlet. 2011 model year trucks require PCV regulating valve update to 2012-2016 specifications for proper fitment.