Wehrli WCF100414-RED L5P Duramax Stage 2 High Flow Intake Bundle WCFab Red

Vehicle Fitment

• 2020-2025 Chevrolet Silverado 2500 HD / 3500 HD, 6.6L L5P Duramax
• 2020-2025 GMC Sierra 2500 HD / 3500 HD, 6.6L L5P Duramax

Fitment Notes

• This product cannot ship to the state of California

Features

• Combines the Stage 1 High Flow Bundle and Stage 2 Intake Kit into a single comprehensive package
• Increases airflow for both turbo and engine, improving efficiency, throttle response, and turbo spool-up
• Eliminates factory weak points that can contribute to lost power, boost leaks, and complete failures under hard use
• High-flow fabricated aluminum intake pipe, intake horn, and air box enclosure replace the restrictive plastic factory intake system
• Draws cooler intake air through the hood Ram Air duct and inner fender
• Intake horn includes a PCV port and surge ring
• Air box includes a dry filter assembly with Outerwear's pre-filter cover
• Finished in WCFab Red custom powder coat

Specifications

• Intake tube diameter: 4"
• Finish: WCFab Red powder coat

Included Components

• 4" aluminum intake pipe
• 4" intake horn with PCV port and surge ring
• Air box enclosure with dry filter and Outerwear's pre-filter cover
• 4" silicone boot(s)
• Installation hardware

Product Description

This Stage 2 bundle brings together everything from Wehrli's Stage 1 High Flow package and Stage 2 Intake Kit into one comprehensive upgrade for the L5P Duramax. By addressing airflow restrictions across both the intake and turbo side of the equation, it delivers meaningfully improved efficiency, throttle response, and turbo spool-up compared to running either upgrade on its own.

Finished in bold WCFab Red, the fabricated aluminum intake pipe, horn, and air box replace the factory plastic components that are prone to becoming a bottleneck - and a source of boost leaks - under hard-working or high-performance use. A comprehensive, one-stop solution for anyone serious about maximizing airflow on their L5P.