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.
I didn't notice much of an increase in mileage since I did it almost immediately.
the only advantage to the k&n is the reusability. for actual filtration, oem paper filters are better. power differences, on these cars, i dont think you will see any differences unless you are pushing over 325hp
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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