Not sure which 2004 Pontiac Grand Am Air Filters are right for you? We have over 128 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Corum M from Sussex, WI said, "I read other reviews before purchasing this filter, and it more than exceeded my expectations! My car defenatly has a little more kick to it, and my gas milage has gone up 1-2mpg which is a great bonus! I would recomend this filter to any1!"