Wehrli 4in Cold Air Intake Kit – WCFab Grey | 17-19 Chevrolet 6.6L L5P Duramax
Boost performance and refine your engine bay on your 2017–2019 L5P Duramax with the Wehrli 4-inch Cold Air Intake Kit in WCFab's signature Grey finish. This complete cold air intake system replaces the restrictive factory airbox with a high-flow 4-inch diameter setup, delivering cooler air and improved horsepower and torque potential.
Key Features
- 4-inch diameter mandrel-bent aluminum piping for superior airflow
- WCFab signature Grey powder-coated finish
- High-flow performance air filter with excellent filtration
- All-inclusive bolt-on kit with hardware, couplers, and clamps
- EPA Compliant – legal for street use in all 50 states (non-CARB)
- Proudly made in the USA by Wehrli Custom Fabrication
Fitment
Fits 2017–2019 Chevrolet Silverado and GMC Sierra 2500 / 3500 HD with the 6.6L L5P Duramax diesel engine. Part Number: WCF100344-GRY.