Not sure which 2003 Toyota Tundra 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:
"This is the best air filter that you can buy for your money. Easy to install and fits exactly in place of the OEM filter. I expect the performance to be the same as previous K & N air filters that I have on my Tundra ane Subaru. I would recomend this as a replacement to the OEM air filter." —Michael J from Green Bay, WI bought a K&N Air Filters for a 2003 Toyota Tundra, 3.3L V6.
"I'm really glad I finally ordered a K&N filter, not only do I notice more power, but on my first tank of gas my mileage improved by 7%." —Michael C from Fort Collins, CO bought a K&N Air Filters for a 2003 Toyota Tundra, 4.7L V8.
"Most have heard about K&N by now, I'm sure, but it doesn't hurt to mention that this is the 4th or 5th one I have bought since learning about them. All of my cars/trucks have used them, and I have never had any complaints. Down with paper filters!" —Timothy K from Coatesville, PA bought a K&N Air Filters for a 2003 Toyota Tundra, 1.8L 4-cyl. engine.
"I recieved my K and N filter in one day that's right one day unbelievable. It has been a pretty good produc and I deinitely notice a difference in horsepower and gas mileage I would reccomend this for anyone" —Duane C from Murietta, CA bought a K&N Air Filters for a 2003 Toyota Tundra, 4.7L V8.
"Great product improved overall performance and am looking forward to many miles of use from my K&N Filter" —Sandy S from Hiawassee, GA bought a K&N Air Filters for a 2003 Toyota Tundra, 2.5L 4-cyl. engine.
"The air filter itself is great and I have noticed a difference. Only minor complaint was no instructions on which direction it should face when installing it. It actually fits both directions on my truck. Hope I picked the right direction." —Timothy D from Lakeway, TX bought a K&N Air Filters for a 2003 Toyota Tundra.