Not sure which 2003 Mazda Protege 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:
"I was very surprised at how easy it was to install! I love the design, it allows for more air flow than any other filter I have used before. I will be upgrading the rest of my vehicles!" —Vaughn C from Ivins , UT bought a K&N Air Filters for a 2003 Mazda Protege, 4.2L 6-cyl. engine.
"When I took out and compared my stock air filter to my new K&N one there was no comparison. The quality and look of the K&N air filter is superior and I will not buy any other brand ever again. Installation was a snap." —Steven V from Flemington, NJ bought a K&N Air Filters for a 2003 Mazda Protege.
"I bought the K&N and got a great price from autoanything. My only problem is that my gas mileage has gone DOWN since I installed it. Odd, considering my old one was cheap and dirty. It could be b/c I live in WI and have started using heat, but it's disapointing. The K&N is great b/c 1 million miles without replacing and you save money on this website. Recommended." —Robert B from Milwaukee, WI bought a K&N Air Filters for a 2003 Mazda Protege.
"I have had the K&N air filter for about a week, I have better gas milege and more horsepower. Great filter...." —Kyran R from Escondido, CA bought a K&N Air Filters for a 2003 Mazda Protege.
"Sice i have purchaces the K&N air filter, I have been happy with the it. I have noticed a bit more horse pwoer, but my main reason behind the purchace was to enhance my gas mileage, which has been acomplished without haveing to do any major modifications to my engine that would void any warranty that I have." —Stephen G from Delray Beach, FL bought a K&N Air Filters for a 2003 Mazda Protege.
"I thought about getting a regular paper filter, but for a few dollars more, I got one that I never have to replace. I already have the cleaning kit, so I am set for the life of my vehicle!" —Tyson P from Mesquite, NV bought a K&N Air Filters for a 2003 Mazda Protege, 2.0L 4-cyl. engine.