Product Description
Improve airflow and engine efficiency with the WEHRLI CUSTOM FAB WCF100411 STAGE 1 HIGH FLOW INTAKE BUNDLE KIT designed specifically for the 2001-2004 LB7 Duramax platform. This performance intake bundle from Wehrli Custom Fabrication increases airflow capacity, improves turbo spool characteristics, and reduces intake restriction compared to factory components.
The Stage 1 intake bundle is engineered to modernize the LB7 intake system using high-quality fabricated aluminum components and premium filtration. By improving intake airflow and reducing turbulence entering the turbocharger, this system helps deliver stronger throttle response, improved turbo efficiency, and increased power potential for both daily driving and performance builds.
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Key Features
- High-flow intake system designed for LB7 Duramax engines
- Improves airflow to the turbocharger
- Fabricated aluminum intake components
- Premium performance air filter included
- Improves throttle response and turbo spool
- Direct bolt-on upgrade over restrictive factory intake system
- Designed for both performance builds and towing applications
Fitment
- 2001 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LB7
- 2002 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LB7
- 2003 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LB7
- 2004 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LB7
- 2001-2004 GMC Sierra 2500HD / 3500HD 6.6L Duramax LB7
Installation Note: This kit is designed as a direct bolt-on intake upgrade and installs using basic hand tools. Professional installation is recommended for optimal results.
Frequently Asked Questions
What improvements will I see with this intake bundle?
This intake upgrade improves airflow to the turbocharger, which can enhance throttle response, improve turbo spool speed, and support higher horsepower builds.
Is tuning required after installing this intake?
No tuning is required. However, pairing this intake upgrade with custom tuning can further maximize performance gains.
Does this intake replace the factory airbox?
Yes. The kit replaces restrictive factory intake components with a higher flowing intake system and performance air filter.
Will this intake work with upgraded turbochargers?
Yes. The intake system is compatible with both factory turbochargers and larger upgraded turbo setups commonly used on LB7 Duramax performance builds.
Is this intake system emissions compliant?
This product is intended for off-road or competition use and may not be emissions compliant in all regions.
Specifications for WEHRLI CUSTOM FAB WCF100411
| Specification | Details |
|---|---|
| Brand | Wehrli Custom Fabrication |
| Part Number | WCF100411 |
| UPC | Not Listed by Manufacturer |
| GTIN | Not Listed |
| Shipping Weight | Approximately 12 lbs |
| Package Dimensions | 24 x 18 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 |
