Not sure which 2004 GMC Sierra Air Filters are right for you? We have over 14810 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:
"Well made,perfect fit,air flow is great and priced right!
K&N is not the only show in town anymore." —Ronnie C from Falkville, AL bought a Spectre Air Filter for a 2004 GMC Sierra, 1500, 4.8L V8.