Wehrli Custom Fabrication WCF100535-GW Duramax Turbo Intake Horn - 4 LB7 Gloss White

The Wehrli Custom Fabrication WCF100535-GW 4" Turbo Intake Horn replaces the restrictive OEM turbocharger mouthpiece on 2001-2004 GM 6.6L Duramax LB7 engines. This intake horn flows 40% better than stock, delivering increased airflow to your turbocharger for improved engine performance and throttle response.

Key Features:

• True 4" inlet turbo intake with smooth flowing transition to turbo compressor cover for optimized airflow and drivability
• Precision CNC machined cast aluminum construction
• Compatible with stock and OE-style aftermarket drop in turbochargers with larger compressor wheels
• Helps boost horsepower and provide quicker spool up
• Proudly made in the USA
• Finished in premium gloss white powder coat

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. This upgrade significantly reduces intake restriction while enhancing throttle response and turbo performance on your Duramax LB7.