Not sure which 2011 GMC Sierra Air Filters are right for you? We have over 12273 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"This is the third time I have purchased a K & N air filter. Each time it improved my miles per gallon by about 1-2 miles per gallon. It will eventually pay for itself. Also, you do not have to replace every couple of months like the cheaper filters." —James A from Roanoke, VA bought a K&N Air Filters for a 2011 GMC Sierra.