Wehrli Custom Fabrication WCF100684-BR L5P Duramax 4" Stage 2 Intake Kit with Air Box Brizzle Blue

The Wehrli Custom Fabrication Stage 2 Intake Kit is a high-flow, fabricated aluminum intake system designed to replace the restrictive factory plastic components on L5P 6.6L Duramax equipped trucks. This complete air intake upgrade features a full aluminum air box enclosure with a dry filter assembly that dramatically increases airflow to the turbocharger for measurable performance gains.

Performance Benefits:

• Increases airflow to turbo producing improved horsepower and torque
• Quicker throttle response and cooler intake temperatures
• Draws cold air through the hood Ram Air duct and inner fender
• More aggressive engine and turbo sound during acceleration
• Large diameter 4" piping with smooth aerodynamic bends improves intake air velocity and volume
• Intake horn is over an inch larger than OEM diameter, removing restriction right before the turbo inlet

Construction and Components:

• All aluminum construction with 10-gauge aluminum air box and lid
• 4" aluminum intake pipe with smooth mandrel bends
• 4" intake horn with PCV port and surge ring
• High-flow dry air filter with Outerwears pre-filter cover
• High-quality silicone boot and stainless steel T-bolt clamps
• Seal for connection to functional Ram Air port on hood
• Removable air box lid for easy filter inspection and maintenance
• Complete hardware kit included

Installation and Compatibility:

• Bolt-on installation with basic hand tools
• No tuning required for stock applications
• Compatible with stock trucks without modifications
• Made in USA
• Finished in Brizzle Blue powder coat

Important Note: The air filter monitor system must be disabled to prevent service air filter messages. When settings are correct, the air filter life indicator will show as disabled.