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.
Reviews of K&N parts For Business
USA
My ‘11 CR-V AWD is sitting pretty at 285,000 miles and I’ve been using a combination of Valvoline MaxLife Engine Oil High Mileage Full Synthetic and K&N High Performance Oil Filter for the last 100k miles.
Valvoline High Mileage w/ K&N Gold filter, I've had no problems, and it runs smooth
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.
Not a whole lot of difference, that is until you swiss cheese the air box!
Air filter, I'd stay far far away from K&N, more flow = more dirt getting in and oil could mess up the MAF. Also, you are not going to gain anything.
K&N filters are a scam. Anyone who installs them is a sucker. Anyone who recommends them is a rube who doesn't understand how their vehicle works.
If you care about your car, DO NOT install one of this shitty products.
THEY DO NOT MAKE MORE PERFORMANCE ON A STOCK OR NEAR-STOCK VEHICLE.
THEY ALSO DO NOT FILTER WORTH A CRAP.
YOU WILL NOT HELP YOUR ENGINE AND YOU WILL CAUSE EXCESSIVE WEAR.
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