Wehrli Custom Fabrication WCF100417-CR High-Flow Turbo Intake Horn Candy Red

The Wehrli Custom Fabrication WCF100417-CR High-Flow Turbo Intake Horn is a precision-engineered performance upgrade for 2011-2016 LML Duramax engines. This intake horn flows 27% better than stock, making it the largest and highest-flowing turbo inlet available for these applications.

Key Features:

• 4.8-inch inlet with CNC machined cast aluminum construction
• True 4-inch inlet with smooth flowing transition to strategically designed anti-surge face, featuring 25% greater flow area than OEM at compressor inlet
• Replaces restrictive OEM plastic inlet to provide increased airflow for improved performance and throttle response, includes port for PCV connection
• Works with OEM and aftermarket cold air intake systems, bolt-on upgrade requiring no tuning
• O-ring seal at turbocharger face, includes mounting hardware
• Custom powder coated in Candy Red finish for distinctive under-hood appearance
• Made in USA

Eliminates the factory resonator for improved appearance and more aggressive turbo and engine sound. Replaces GM part numbers 12642296 and 12637801. Designed to work with intake systems using silicone boot connections at the horn. Kit includes silicone reducer boot and stainless steel T-bolt clamps for complete installation.