K&N Filters: reviews and customer ratings

A must-have upgrade for the Fiesta:

Sharper throttle response

Smoother acceleration under load

Enhanced intake sound at full throttle

Maintains everyday usability while delivering a sporty edge when needed

More refined and controlled power delivery


You’ll notice the improvement immediately compared to a standard filter.

I tightened the oil filter cartridge to the specified torque of 25 Nm. After 10 km, there was a visible oil leak from the filter. In the picture, the green one is the original Mahle, the red one is K&N. Even without measuring, it's clear that the red one is narrower.K&N Made in Korea

Overpriced for the products delivered. Flawed design since filter to pipe part detaches easily and has no tightening ring. Only filter, filter box and small pipe useful. No pipes for full air intake system. Dissapointing for the price and flawed design.

Probably the best filter out there, its more expensive when you buy it but it last almost forever just clean it and put it back, and the airflow is also greater then the stock ones, its god for us people that little more boost than stock

It's one of the best brands, if not the best, that produces materials and components for every kind of cars including this air filter which last a long time. It's well made and engineered to give the best performance to our cars

exeptional performance gain, car feels much more linear power gain and also makes a bit louder sound on idle, which is I think due to gow filter works. Had it for over two years, would not take any other air filter.

I have used K&N filter on my Triton pickup truck and I have been happy with the easy of cleaning it and putting it back into the engine filter box. Enjoy the ride with it for 3 years on my Triton 2010 pickup truck.

Tested on the dyno on my previous car Audi A7 Bitdi.It really delivers what it says on the tin,slight increase in hp and torque plus better induction sound.I'm looking forward to have it fitted on my tuned Golf R.

I have been using them on my Mustang for years. I loved that they came with the stickers to write down the mileage and put them on your front window. Apparently that’s no longer the case, such a shame!

Excellent quality!
Very simple to install, just as well because it came with no instructions at all.
It has enabled a small increase in efficiency & power, but this is negated by a loss in refinement.

Best Filter you can buy on the market,performs amazingly,sounds amazing and also looks sexy...which is always a plus would recommend to anyone...plus easy to clean and maintain with k&n products

Filter collapsed and shrunk causing oil pressure issues after 7,500miles/12,000km on a 2019 Polo Gti. Do not use unless you want catastrophic engine failure. Stick to Mann OEM filters only