Product Description
The WEHRLI CUSTOM FAB WCF100194 2011-2016 LML DURAMAX 4 INTAKE KIT WITH AIR BOX is engineered to significantly improve airflow and performance for LML-equipped Duramax trucks. The restrictive factory intake system can limit turbo efficiency and airflow under heavy load. This premium upgrade replaces the stock intake with a high-flow 4-inch aluminum intake system paired with a fabricated air box designed to deliver cleaner, cooler airflow directly to the turbocharger.
Constructed from high-quality aluminum and designed with durability and performance in mind, this Wehrli intake system improves throttle response while supporting increased horsepower and torque. The sealed air box design helps reduce heat soak while protecting the filter from engine bay contaminants, making it ideal for both daily-driven trucks and performance builds.
Whether you're towing, daily driving, or building a high-performance LML Duramax, the WCF100194 intake kit provides a clean underhood appearance and dependable airflow improvements that support both stock and modified trucks.
Key Features:
- High-flow 4-inch aluminum intake pipe
- Fabricated aluminum air box and lid assembly
- Improves turbo airflow and engine efficiency
- Helps increase throttle response and power potential
- Durable powder-coated components
- High-flow dry air filter included
- Stainless T-bolt clamps and silicone couplers
- Direct bolt-on installation
- Made in the USA
Fitment:
- 2011 Chevrolet Silverado 2500HD 6.6L Duramax LML
- 2011 Chevrolet Silverado 3500HD 6.6L Duramax LML
- 2012 Chevrolet Silverado 2500HD 6.6L Duramax LML
- 2012 Chevrolet Silverado 3500HD 6.6L Duramax LML
- 2013 Chevrolet Silverado 2500HD 6.6L Duramax LML
- 2013 Chevrolet Silverado 3500HD 6.6L Duramax LML
- 2014 Chevrolet Silverado 2500HD 6.6L Duramax LML
- 2014 Chevrolet Silverado 3500HD 6.6L Duramax LML
- 2015 Chevrolet Silverado 2500HD 6.6L Duramax LML
- 2015 Chevrolet Silverado 3500HD 6.6L Duramax LML
- 2016 Chevrolet Silverado 2500HD 6.6L Duramax LML
- 2016 Chevrolet Silverado 3500HD 6.6L Duramax LML
- 2011 GMC Sierra 2500HD 6.6L Duramax LML
- 2011 GMC Sierra 3500HD 6.6L Duramax LML
- 2012 GMC Sierra 2500HD 6.6L Duramax LML
- 2012 GMC Sierra 3500HD 6.6L Duramax LML
- 2013 GMC Sierra 2500HD 6.6L Duramax LML
- 2013 GMC Sierra 3500HD 6.6L Duramax LML
- 2014 GMC Sierra 2500HD 6.6L Duramax LML
- 2014 GMC Sierra 3500HD 6.6L Duramax LML
- 2015 GMC Sierra 2500HD 6.6L Duramax LML
- 2015 GMC Sierra 3500HD 6.6L Duramax LML
- 2016 GMC Sierra 2500HD 6.6L Duramax LML
- 2016 GMC Sierra 3500HD 6.6L Duramax LML
What's Included:
- 4-inch fabricated aluminum intake pipe
- Aluminum air box assembly with lid
- High-flow dry air filter
- Silicone coupler boot
- Stainless T-bolt clamps
- O-ring seals
- Mounting hardware
- Installation components
FAQ
Will this intake fit all Duramax trucks?
No. This intake system is specifically designed for 2011-2016 GM Silverado and Sierra 2500HD/3500HD trucks equipped with the 6.6L LML Duramax engine.
Does the intake require tuning?
No tuning is required. The WCF100194 intake system installs as a direct bolt-on upgrade and works with stock engine calibrations.
What benefits can I expect from installing this intake?
This intake improves airflow to the turbocharger, which can help improve throttle response, support horsepower gains, and reduce intake restriction compared to the factory intake system.
Is installation difficult?
No. Installation is straightforward and can typically be completed using common hand tools. Most installs take approximately 30-60 minutes.
Is this product legal in California?
This intake system is typically listed as not available for sale in California. Always verify local emissions regulations before installation.
| Brand | WEHRLI CUSTOM FAB |
| Part Number | WCF100194 |
| UPC | Not publicly listed |
| GTIN | Not publicly listed |
| Shipping Info | Typical package dimensions approximately 16 x 16 x 24 inches. Average shipping weight approximately 12-15 lbs. Ships via UPS or FedEx ground. |
| Material | Fabricated aluminum intake pipe and air box |
| Filter Type | High-flow dry air filter |
| Country of Origin | United States |
| Prop 65 | Warning applies. See https://www.P65Warnings.ca.gov |
