Chevrolet Duramax Performance Air Intake – Wehrli 4" Intake Kit with Air Box, Gun Metal (2011–2016). High-flow fabricated aluminum upgrade replacing restrictive factory parts on LML 6.6L trucks.

Built by Wehrli Custom Fabrication (WCFab), the 4-inch intake pipe and enclosed air box with a dry filter draw cooler air from the inner fender for improved airflow, quicker throttle response, and lower intake temps. Smooth, large-radius bends increase velocity and volume with a deeper turbo/engine note. The removable lid simplifies checks, and the hydrophobic pre-filter helps keep the MAF, turbo, and air path cleaner. Premium silicone boot, stainless T-bolt clamps, and complete hardware make it a straightforward bolt-on—no tuning required.

Features

• Fits 2011–2016 GM/Chevrolet/GMC 6.6L Duramax LML
• 4" aluminum tube with enclosed air box and lid
• Dry air filter with hydrophobic pre-filter cover
• Silicone boot, stainless T-bolt clamps, and full hardware
• Gun Metal powder coat; Made in the USA; installs with basic tools

Questions or need guidance? Call 512-982-9393 (TX) or 562-981-6800 (CA). We offer installation and customization at our Austin, Texas and Los Angeles, California locations. If you’re considering multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov