Owner reviews for air filter

I have a K & N filter in my 2016 cx9, it's been there since about 10k miles, now has 93k miles on it. I feel I picked up about 1 mpg with it and it does feel peppier.

K&N filters are great for the price. Very little gains. In my opinion the engine felt a little more responsive and maybe had a little more top end. But nothing to write home about.

I have them in my bone stock g37s coupe and I like them. I wasn't expecting crazy power with only drop in filters.

Mate, I run a K&N in my 2003 Peugeot 206 GTi. Standard style. Off the bat there was no throttle lag (previously I’d have to almost put my foot to the firewall, now I only need my big toe). HP there’s not much difference.

If you are handy buy a K&N air filter if you are keep your car >100000 miles and then you will need a recharging kit at some mileage intervals.

I just spend the $50 on a K&N filter for my cars. Another $20 gets you the kit for cleaning and re-oiling. $70 for a filter and years worth of filter clean/renew cycles.

A K&N cold air filter will not hurt , as long as you are committed to regularly cleaning & oiling the filter.

Just installed the K & N filters. Whoever, designed the air filter housings is a complete and utter moron! It is inexcusable at how difficult it is too change out the passenger side filter. What were they thinking. I had to chop with a knife the existing filter (passenger side only) to get it out of the tiny gap that is available. The 'G' clips are not hinged to fold back, so they act as great hooks to snag the filters. Then had to vacuum out the housings to make sure I did not leave any debris before installing the K & N's. One of the main benefits of the K & N's is that they are slimmer that the OEM's and will therefore be easier to access for future maintenance as they will slip in and out of the housings easier. THe reason I bought them is I have had good experiences with them in the past, I live at 10,000 feet and any extra air my engines can get makes a big difference!

Over cleaning a K&N does more harm than good. K&N's need dirt to be effective. Clean K&N's let through too much dirt, until they become effective.

I'm not a believer in K&N. I've always thought of it as being rather gimmicky.