High flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic factory parts on the 2020-2025 L5P Duramax for improved engine performance. Increases air flow to turbo producing improved horsepower and torque, quicker throttle response, and cooler intake temperatures by drawing cold air through the hood Ram Air duct and inner fender. All aluminum construction features large diameter 4" piping with smooth aerodynamic bends to improve intake air velocity, volume, and provide more aggressive engine and turbo sound during acceleration. The intake horn is over an inch larger than the OEM diameter and improves air flow to turbo by removing restriction found in the factory horn right before the turbo inlet.

Full assembly finished in your choice of WCFab's signature custom powder coat colors for a look as unique as your truck.

-Installs easily with basic hand tools.

-NO Tuning required, bolt on!

-Will fit on stock truck no other modifications or upgrades necessary!

***FAILURE TO DISABLE AIR FILTER MONITOR SYSTEM WILL RESULT IN A SERVICE AIR FILTER MESSAGE AND REQUIRE DEALERSHIP TO RESET THE SYSTEM. THE AIR FILTER LIFE WILL SHOW DISABLED MESSAGE WHEN SETTINGS ARE CORRECT.***

• 4" Intake Pipe
• 3 1/2" Intake Horn
• Air Box with Lid
• Dry Air Filter
• Outerwear's Pre-Filter Cover
• Hardware
• Seal for Connection to Functional Ram Air Port on Hood
• High Quality Silicone Boot
• Stainless Steel T-bolt Clamps
• Powder coating
• Installs easily with basic hand tools.
• No Tuning Required, Bolt On!
• Compatible with stock trucks. No other modifications or upgrades necessary!