Wehrli Custom Fabrication WCF100721-BB 3.5" Turbo Intake Horn 2017-2019 Duramax L5P Brushed Bronze

The Wehrli Custom Fabrication WCF100721-BB is a high-flow 3.5-inch turbo intake horn designed for 2017-2019 GM 6.6L Duramax L5P engines. This performance upgrade replaces the restrictive 2.4-inch factory plastic intake horn, significantly increasing airflow to your turbocharger for improved throttle response and power gains.

Key Features:

• 3.5-inch large diameter design replaces restrictive 2.4-inch OEM plastic horn
• Made in the USA from high-quality aluminum construction
• Premium Brushed Bronze powder coat finish for a distinctive engine bay appearance
• No tuning required—true bolt-on installation
• Includes O-ring, mounting studs, and all necessary hardware
• Direct fit for stock trucks with no other modifications required
• Features integrated PCV port for proper crankcase ventilation

Wehrli Custom Fabrication specializes in precision-fabricated diesel performance parts with a reputation for exceptional fitment and craftsmanship. Each intake horn is CNC-machined and professionally powder coated to ensure durability and a show-quality finish. This upgrade provides measurable performance gains while enhancing the visual appeal of your engine compartment.