K& N's mandrel-bent aluminum cold air intake systems are guaranteed to provide an increase in horsepower and torque, and are protected by the K& N No-Hassle Lifetime Limited Warranty.
Year
Make
Model
Notes
2011 - 2013
Chevrolet
Silverado 2500 HD
California Air Resources Board Exempt: No; Cold Air Intake System: High-Flow Air-Filter, Aluminum tube; Black
2011 - 2013
Chevrolet
Silverado 3500 HD
California Air Resources Board Exempt: Yes; CARB EO: D-269-49; Cold Air Intake System: High-Flow Air-Filter, Aluminum tube; Black
2011 - 2013
GMC
Sierra 2500 HD
California Air Resources Board Exempt: No; Cold Air Intake System: High-Flow Air-Filter, Aluminum tube; Black
2013
GMC
Sierra 3500 HD
California Air Resources Board Exempt: No; Cold Air Intake System: High-Flow Air-Filter, Aluminum tube; Black
2011 - 2012
GMC
Sierra 3500 HD
California Air Resources Board Exempt: Yes; CARB EO: D-269-49; Cold Air Intake System: High-Flow Air-Filter, Aluminum tube; Black