K&N 77 Series Performance Intake Kit for 11-14 Chevrolet Silverado/GMC Sierra 2500/3500 V8 6.6L Lights>Light Mounts The center adjuster is CNC-machined

The center adjuster is CNC-machined from chrome-moly steel with rolled threads for the ultimate in strength and durability

Proprietary seal design eliminates leakage

This bearing is one of the most commonly used 1-inch spherical bearings in the industry

Best of all it features a Million-Mile Warranty

With a stage one tune

K&N 77 Series Performance Intake Kit for 11-14 Chevrolet Silverado/GMC Sierra 2500/3500 V8 6.6L Lights>Light Mounts The center adjuster is CNC-machinedGain a guaranteed increase in horsepower and torque with a K&N cold air intake system featuring a mandrel bent aluminum intake tube. Each system is paired with a washable, reusable High Flow Air Filter featuring oiled cotton filter media. The oversized, conical filter design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom heat shield or air box helps protect intake air from the high