Another excellent product from K&N
Huge improvement over stock with more free cold air flow. My 6.2L improved the throttle response during 0 to 60 acceleration, and also with better mileage. The only minor, if any negative, is that it will make some noise during acceleration because of the better free air flow. The discreet spirited driver will find this modification to be worth. Installation although simple is delicate so make sure that only a patient, with some good mechanical knowledge installer does the install.
2011 Silverado 4.8L
Probably the best current cold open air filter system out on the market right now. Install was not hard and took me about 45 minutes. If you get the add on open air snorkel like I got, which was the hardest part - maybe 20min for that alone. You can tell after the install that the truck completely breathes in much deeper and sounds deeper on exhaust also. Very happy with results!