Wehrli Custom Fabrication WCF100535-GRY 4" High-Flow Turbo Intake Horn LB7 Duramax

The Wehrli Custom Fabrication WCF100535-GRY 4" Turbo Intake Horn replaces the restrictive OEM turbocharger mouthpiece on your GM 6.6 Duramax LB7. This high-flow cast aluminum turbo intake horn is the largest and highest flowing turbo inlet on the market.

Key Features:

• True 4" inlet with smooth flowing transition to turbo compressor cover for optimized airflow and drivability
• CNC machined cast aluminum construction
• Compatible with stock and OE-style aftermarket drop-in turbochargers with larger compressor wheels
Custom powder coated in WCFab Grey finish
• Made in USA

This intake horn is designed to provide increased airflow to your turbocharger for improved engine performance and throttle response. Great upgrade offering quicker spool up and more HP! Max-effort tuned trucks can see 10-15 HP gains while applications with upgraded turbochargers can experience as much as 20 HP improvements. Works with performance aftermarket intake systems utilizing a 4" boot connection with bead roll, like the WCFAB 4" Intake Kits.