Not sure which 2008 Cadillac STS Air Filters - Custom Fit is right for you? We have over 14143 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:
"The k&n filters are the only one i use in my car's from family sedan to cobra mustang and suv cad. Inproves performance and mpg." —James D from Odessa, FL bought a K&N Air Filters for a 2008 Cadillac STS, 3.6L V6.