GMC Sierra Performance Air Intake – Wehrli 4in Intake Resonator Pipe, WCFab Red (2020–2025). Replaces the stock plastic resonator to tidy the bay and improve airflow to the factory VGT turbo.

This 4-inch mandrel-bent aluminum pipe cuts restriction and deletes OE silencers for a more pronounced turbo/engine sound. It retains the OEM air box and filter, installs with basic tools, and requires no tuning. Durable WCFab Red finish; kit includes silicone boots and stainless T-bolt clamps. OEM air box only; not compatible with S&B, Banks, AFE, or other aftermarket intakes.

Features

• 4 in mandrel-bent aluminum pipe, WCFab Red; Made in USA
• 2020–2025 L5P 6.6L Duramax with factory VGT turbo and OEM air box
• Bolt-on install with silicone boots and stainless T-bolt clamps; no tuning required; replaces GM 84841229, 84841225, 84262962

Questions or ready to schedule? Call Austin, TX at 512-982-9393 or our Los Angeles area shop at 562-981-6800. We offer installation and customization at both locations.

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