Not sure which 2003 Mazda 6 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:
"K&N filters are one of the best filters on the market that are able to be cleaned and used for the life of your vehicle. I have used them for my car, truck and atv's with outstanding results. I recently purchased a back of filter for my car just so that I can keep one cleaned and ready to install at oil changes. I would reccommend K&N to anyone who does do thier own air filter changes. These filters will pay for thier selves before or by the second filter replacement time. In using K&N filters My fuel consumption is increased and the over all power of your vehicle is increased." —Lonnie R from Canby, OR bought a K&N Air Filters for a 2003 Mazda 6.
"I have used K&N in all my vehicles and it performs just as well in my Mazda6, better throttle response and a improvement in gas mileage and power!" —Ronald S from Dallas, GA bought a K&N Air Filters for a 2003 Mazda 6, 3.0L V6.
"The high-flow air filter seems to have given the car a modest boost in power and fuel efficiency, but the result I'm most please with is that the very pronounced pre-ignition (knocking and pinging) that I have experienced on my high-mileage Mazda 6 has all but disappeared. I'm very pleased with the product and will continue to be a loyal customer of K&N air filter products." —Eric D from Orlando, FL bought a K&N Air Filters for a 2003 Mazda 6, 3.0L V6.
"This is my first K&N filter. I've only had it a week, but I do notice a difference. Car seems to peppier and rev more freely and I think I'm getting about 1 to 2 mpg better gas mileage, which is a plus. Overall I'm pleased." —John F from West Des Moines, IA bought a K&N Air Filters for a 2003 Mazda 6.
"I highly recommend this product. After I put in the K&N air filter I immediately noticed a major difference in horsepower upon takeoff. I have gotten better gas milage as well, at least 20 to 30 miles more per tank. This is the best air filter for your money." —Randy B from Monroe, LA bought a K&N Air Filters for a 2003 Mazda 6.