GMC Sierra 3500 Performance Air Intake - Wehrli 4in Intake Pipe - WCFab Grey (2020–2024). A bolt-on resonator pipe that improves airflow to the factory VGT turbo and tidies the engine bay while retaining the OEM air box.

Built for the 6.6L L5P Duramax, this 4-inch mandrel-bent aluminum tube replaces the stock plastic resonator, reduces restriction, and brings out a more pronounced turbo note. The durable WCFab Grey finish resists corrosion, retains the OEM filter box for easy service, and installs with basic tools—no tuning required.

Features

• 2020–2024 GMC Sierra 3500 HD 6.6L L5P (factory VGT turbo)
• 4 in. mandrel-bent aluminum resonator delete pipe
• Retains OEM air box; silicone boots and stainless T-bolt clamps
• OEM air box only; not compatible with S&B, Banks, AFE
• Durable WCFab Grey powder coat; Made in USA
• Bolt-on install; no tuning required; replaces GM 84841229, 84841225, 84262962

Questions? Call us—we offer installation and customization at our Austin, TX and Los Angeles, CA area locations: TX 512-982-9393, CA 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