GM Duramax 6.6L LML Cold Air Intake (2011-2016)

Cold Air Intake for 2011–2016 GMC Sierra 2500/3500 & Chevrolet Silverado 2500/3500 6.6L Duramax LML

If you’re working on a 2011–2016 6.6L Duramax and want better airflow without cobbling parts together, this intake is built to fit trucks running the OEM-style 3-bolt turbo flange. It’s not for Cab & Chassis models. For best results on modified setups, plan on proper race tuning after install.

Vehicle Compatibility

• Years: 2011-2016
• Makes: Chevrolet Silverado, GMC Sierra
• Models: 2500, 3500
• Engine: 6.6L Duramax (diesel)
• Body: Pickup

Increased Airflow Where It Counts

• Delivers up to 29% more airflow over stock
• Reduces intake restriction to help the turbo spool quicker
• Supports stock calibration or custom tuning without triggering codes

Fully Enclosed Airbox

• One-piece sealed design keeps engine bay heat out
• Pulls cooler air for improved combustion efficiency
• Helps protect the filter from dirt and debris in real-world driving

High-Temp Silicone Components

• Multi-layer silicone couplers rated up to 400°F
• Stronger sealing than standard rubber boots
• Resists cracking under heat cycles and boost pressure

Adjustable Inlet Setup

• Secondary inlet allows additional airflow when needed
• Silicone plug included to block it off if you prefer fender-only intake

The integrated MAF housing is correctly mapped for smooth operation, so you don’t fight drivability issues after installation. For Duramax owners who use their trucks hard—towing, hauling, or running tuned—this intake delivers dependable airflow without cutting corners.