Not sure which 2003 Infiniti I35 Air Filters are right for you? We have over 14810 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:
"Test to drove 1000+ mile, my Infiniti I35 Increase gas mileage from 23 mpg to 24.6 mpg. engine run smooth. Pretty good air filter." —Powen C from Sunnyvale, CA bought a K&N Air Filters for a 2003 Infiniti I35, 3.5L V6.