Chevrolet Silverado 2500 HD Performance Air Intake — Wehrli High Flow Intake Horn, Bengal Silver (2017–2025). A true 4 in. cast-aluminum turbo inlet that replaces the restrictive OEM mouthpiece on 6.6L Duramax L5P trucks for increased airflow.

CNC-machined with a smooth transition and an engineered anti-surge face that seats to the compressor cover. A #10 ORB billet PCV port, O-ring at the turbo, and included hardware deliver a straightforward bolt-on—no tuning needed. Works with stock trucks, OEM/aftermarket cold air intakes, and compatible drop-in turbos.

Features

• 25% greater flow area at the compressor inlet; flows 27% better than stock
• True 4 in. inlet; durable cast-aluminum; Made in USA; includes mounting hardware
• O-ring sealed turbo face; billet #10 ORB PCV barb; replaces GM 12678756/19432816/12682569; fits L5P 2017–2025 and L5D 2019–2024 MD

Have questions? Call our team. We offer installation and customization at our Austin, TX and Los Angeles, CA area locations: 512-982-9393 (TX), 562-981-6800 (CA).

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