Reviews of K&N air filter

Not worth it at all. It’ll allow more dirt in your engine for zero power gain.

I’ve used KN filters in many cars. I had one in my WRX for 13 years. It’s a great filter but the filtration isn’t as good as normal filters. About every 15-20,000 miles you need to clean it, that means you won’t be able to drive your car for like 12 hours while your filter dries. Then you need to re-oil it and make sure you don’t use too much or it will fuck in your sensors.

KN avoid them they allow to much dirt to pass through, if you want higher quality go AFE Dry Pro.

Reusable K&N filters very marginally improve performance at the cost of allowing more dust and other particles into your engine. OEM paper filters or other reputable ones like WIX do a much better job of actually cleaning the air.

I would recommend a K&N cloth filter. They can be cleaned and re-oiled about every 50K miles. They never need to be replaced.

I run K&N's on my Harley and the blower on my SBC. No issues.

The k&n gets you nothing except for letting a lot of dirt through if you don’t oil it regularly.

K&N air filter is rated as the worst thing you can put on your vehicle. We tested different 'cold' air intakes when I went to Nascar Tech and K&N will take away around 8 horsepower.

I replaced the air filter with a higher quality paper k&n, but thats it for anything under the hood.

a k&n air filter, it changes the car a fair bit and gives it some new life too