Chevrolet Duramax LML Intake Horn - Wehrli - High Flow Cast Aluminum - Bengal Grey - 2011-2016. This high-flow cast aluminum horn replaces the restrictive OEM plastic inlet to improve airflow and sharpen throttle response, finished in durable Bengal Grey.

Engineered by WCFab, it features an integrated PCV port and deletes the factory resonator for a cleaner bay and a more pronounced turbo/engine note. Direct replacement for GM 12642296 and 12637801, and designed to work with WCFab Stage 1 Intake and Stage 1 High Flow Bundle Kits. Requires an intake that uses a 4 in silicone boot and clamp at the horn; molded rubber couplers that slide over the OEM horn will not fit. 2011 trucks must update the PCV regulating valve to 2012-2016 spec. Not compatible with aftermarket LML Y-bridges that relocate the inlet. Made in the USA.

Features

• Cast aluminum construction with Bengal Grey powder coat
• High-flow design for improved turbo response
• Integrated PCV port; resonator connection deleted
• O-ring seal, new EGR gaskets, stainless T-bolt clamps
• Silicone reducer boot; replaces GM 12642296/12637801

Have questions or want to book an install? Call 512-982-9393 (TX) or 562-981-6800 (CA). We serve at our Austin, Texas and Los Angeles, California area locations with full installation and customization services.

If you are purchasing 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