Not sure which 2008 Nissan Altima 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:
"Let's do the math... stock air filters cost approx. $7 to $8 every 10k to 12k miles. After 50k miles, you've racked up approx. $30 - $35 in air filters. For a few more dollars, get a K&N. Why? Well, not only do you break even on air filter costs, but I honestly GAINED 4 MPG, unarguably, in town, on the highway, 4 MPG! I went from average MPG of 26.5 to 30.5, consistantly. It lowers idoling RPM's and increases acceleration. THE BEST INVESTMENT ANYONE CAN MAKE! Whenver I buy a car, it is the FIRST thing I buy! I am not sure if I can be any more clear. I would love to hear why someone wouldn't buy one. Even if they somehow didn't gain in MPG or acceleration, they still break even for the cost, period! Hope this helps you make a decision! Enjoy!" —Stephen D from Waseca, MN bought a K&N Air Filters for a 2008 Nissan Altima, 2.5L 4-cyl. engine.