Not sure which 2002 Cadillac DeVille 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:
"Before I purchased my K & N 1 was gettin 18.1 MPG... the day I put it in, I was already up to 19.3, and today (2 weeks later) I am up to 21.4! It doesnt get much better than that!
Thanks!" —James S from Natick, MA bought a K&N Air Filters for a 2002 Cadillac DeVille.
"I have a K&N filter in every vehicle I own. On this particular application I went from 23 to 27 MPG just by changing the filter! Its just like they claim "The worlds best air filter" The easiest and cheapest was to add more horsepower and MPG." —Blake M from Piedmont, AL bought a K&N Air Filters for a 2002 Cadillac DeVille, 3.4L V6.