4" Intake Kit with Air Box

Replace the 2017–2019 L5P plastic intake with a 4-inch aluminum system that uses the hood ram-air port and inner fender. The air-box lid is removable for filter access, and the ram-air duct seal relocates to the underside of the hood.

Features & included components

• Aluminum intake and 10-gauge air box/lid
• Dry filter and hydrophobic Outerwears cover
• Hood ram-air seal
• Silicone boot, stainless clamps and hardware
• Bolt-on, no tuning required on the stated stock setup

Fitment & installation notes

2017–2019 Chevrolet Silverado/GMC Sierra 2500/3500 HD 6.6L L5P Duramax; original hood ram-air/fender air paths. Not compatible with WCF100709 intake resonator pipe. Specify the vehicle model year when ordering.

Not compatible with WCF100709 intake resonator pipe.

Shipping restriction: Not available for shipment to California.

Manufacturer part number: WCF100344

Fitment: 2017–2019 Chevrolet Silverado/GMC Sierra 2500/3500 HD 6.6L L5P Duramax; original hood ram-air/fender air paths. Not compatible with WCF100709 intake resonator pipe. Specify the vehicle model year when ordering.