Product Description
Increase airflow and improve turbo efficiency on your Duramax with the WEHRLI CUSTOM FAB WCF100702 4" INTAKE KIT WITH AIR BOX. Designed specifically for the 2020-2024 L5P Duramax, this premium intake system replaces the restrictive factory intake components with a high-flow fabricated aluminum intake tube and sealed air box designed for maximum airflow and filtration performance.
Engineered by Wehrli Custom Fabrication, this intake kit improves turbocharger response, reduces intake restriction, and delivers improved engine breathing under load. The 4-inch intake tubing allows the L5P turbocharger to pull air more efficiently, helping support performance tuning, towing applications, and upgraded turbo systems. The sealed air box protects the intake system from engine bay heat while maintaining excellent airflow.
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Key Features
- Large 4" mandrel-bent aluminum intake tubing
- High-flow performance air filter
- Sealed air box design for improved airflow and reduced heat soak
- Direct bolt-on installation for L5P Duramax trucks
- Improves turbo response and intake efficiency
- Durable powder-coated fabricated components
- Supports tuned and modified Duramax builds
Fitment
- 2020 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax L5P
- 2021 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax L5P
- 2022 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax L5P
- 2023 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax L5P
- 2024 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax L5P
- 2020-2024 GMC Sierra 2500HD / 3500HD 6.6L Duramax L5P
Frequently Asked Questions
Does this intake kit improve horsepower?
Yes. By improving airflow and reducing intake restriction, this kit can help improve horsepower and throttle response, especially when combined with tuning.
Is this intake system a direct bolt-on upgrade?
Yes. The Wehrli WCF100702 intake kit is designed as a direct bolt-on replacement for the factory intake system on 2020-2024 L5P Duramax trucks.
Will this intake work with aftermarket turbochargers?
Yes. The large 4" intake tubing supports increased airflow requirements and works well with upgraded turbocharger setups.
Does this kit include the air filter?
Yes. The intake kit includes a high-flow performance air filter designed to maximize airflow while maintaining proper filtration.
Is tuning required after installation?
No tuning is required to install this intake system, although tuning can further improve performance gains.
Specifications for WEHRLI CUSTOM FAB WCF100702
| Specification | Details |
|---|---|
| Brand | Wehrli Custom Fabrication |
| Part Number | WCF100702 |
| UPC | Not Listed by Manufacturer |
| GTIN | Not Listed |
| Shipping Weight | Approximately 15 lbs |
| Package Dimensions | 24 x 16 x 12 inches |
| Shipping Method | UPS / FedEx Ground |
| Prop 65 Warning | This product may contain chemicals known to the State of California to cause cancer or reproductive harm. For more information visit https://www.P65Warnings.ca.gov |
