Chevrolet Silverado 3500 HD Performance Air Intake - Wehrli 4 in WCFab, Gun Metal (2020-2025). This bolt-on kit replaces restrictive factory parts to improve airflow and throttle response on 6.6L Duramax L5P trucks.

Built from 10-gauge aluminum, the air box and 4 in tube use smooth, high-flow bends and a dry filter to pull cooler air from the hood ram-air duct and inner fender. Expect quicker throttle feel, a stronger turbo note, and lower inlet temps with no tuning. Installs with basic hand tools and works on stock trucks; includes silicone boot and stainless T-bolt clamps. Durable Gun Metal powder coat and a sealed hood-port connection.

Features

• 4 in aluminum intake tube with dry filter
• 10-gauge aluminum air box and lid
• Cold-air feed via hood ram-air duct/inner fender
• No tuning required; stock-truck compatible
• Stainless T-bolt clamps and silicone boot

Questions? Call our Austin, TX or Los Angeles, CA area teams. We offer installation and customization at both locations: Austin 512-982-9393, Los Angeles 562-981-6800.

Buying 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