Square Root Fab L5P Duramax Intake Horn

Take the restriction out of your L5P intake system with the SRF L5P Duramax Intake Horn, designed and manufactured by Square Root Fabrication with performance and airflow as the priority.

Unlike traditional aluminum intake horns, the SRF L5P Intake Horn is manufactured from high-strength carbon-fiber reinforced nylon. This provides a strong, lightweight intake while also helping isolate the incoming air charge from under-hood heat compared with a highly heat-conductive metal intake horn.

Optional Sizes

4” Intake Horn- Our 4” version is designed for street, performance, towing, and modified L5P applications where increased airflow is desired while maintaining a practical intake size.

4.5” Competition Intake Horn- Built for serious performance applications, the 4.5” version features an oversized inlet designed for competition and high-horsepower L5P combinations where maximum airflow is the priority.

Features

• MADE IN THE USA
  
• Lower EGTs
• Optional Size Outlets
• Smooth Internal Flow Path
• Lightweight Durable Construction
• Low Heat Transfer & Dissapation
• Faster Turbo Spool w/ Better Throttle Responce
  
• Manufactured From Carbon-Fiber Reinforced Nylon

Fitment

• 2017-2027 L5P Duramax

Due to its larger size, the 4.5” version is intended for custom and competition-oriented setups and may require modifications or additional components for proper fitment depending on the vehicle and intake configuration. It should not be considered a direct drop-in replacement for every L5P application.