BENCHProject Farm index

Wipers, Filters & Plugs

Which Car Air Filter is Best? Let's find out! Fram, K&N, Wix, Purolator, & AC Delco showdown

Mar 2020/16 min/7 products tested

Watch the test ↗

The verdict

  1. 1

    WIX

    “Those two brands, the Pureolator and the Wix, really out performed the other brands in a huge sort of way, showing why they do cost a little bit more and they're probably well worth the money.”
    Buy on Amazon ↗
  2. 2

    Purolator

    “So, the Purolator one is the best filter tested for blocking contamination so far and takes the lead from the EP Auto.”
    Buy on Amazon ↗

Other picks

  • Also noted

    K&N

    “If it's all about performance and you're heading down to the track for the weekend, the K&N filter is definitely going to help with regard to performance.”
    Buy ↗
  • Avoid

    Fram

    “So, compared to the less expensive EPAuto, the Fram had more than twice as many small particles and four times as many large particles. Not good.”
    Buy ↗

Everything tested 7

Links go to Todd's own Amazon listings with his affiliate tag intact — this site adds nothing and takes nothing.