K&N Engine Air Filter: Reusable, Clean Every 75,000 Miles, Washable,Replacement Car Air Filter: Compatible with 1991-2002 MAZDA/TOYOTA/CHEVROLET/EUNOS (Millenia, Corolla, Sprinter, Prizm, 800) 33-2672

I have used a K&N filter on all of my vehicles for decades. My 1992 Chev 6.5 diesel has over 360K miles on it, with a K&N since I bought it new. I've never had any problems with them. Somewhere during their use I check them and use the K&N cleaning kit if needed.No, I do not notice any increase in performance or power or miles to the gallon or anything like that. I just have several vehicles with the same filter that I can trust and clean. All the same filter and cleaned with the same products.I should also add that we live over 20 miles off the paved road. Gravel roads kick up a lot of dust. Vehicles are darn expensive now days. I do not take lightly the needs of the engine for a breath of dust free air. That is why I use K&N.

I was skeptical upon purchasing this K&N drop in, but worth the price. It was time to change the air filter, and was either this more expensive, reuseable filter or the paper FRAM brand one, which is now about $18 at Walmart. I chose this K&N upon reading online and the reviews that Amazon had. Upon dropping this in, about a 2 minute install, the car idles quieter and is more responsive when stopped at a signal. Haven't seen if this filter improves gas mileage, since this would be a big ++++ with the gas over $4 a gallon these days. Just topped the tank off, so we will see. Just picked another K&N filter for the other daily driver......

Good air filter, but the oil used coats my MAF sensor, and causes the engine to bog, and lose gas mileage. I was able to carefully clean it, and the "check engine" light then went out. Going back with the regular dry type, as there is no residue buildup with them. If you have a carburetor, then it should be OK....fuel injection with MAF...I don't think so.

very good product .. 100% guaranteed .. for my corolla 1999

Used it on 1999 Corolla and instantly got an improvement in mileage for first few weeks. I used keep a tab on my mileage all the time using built in odometer trip and used to get an average of 24-26 miles per gallon. With fram filters I used to get an boost for a max of couple miles only for the first two tanks and it will return to normal after that. And I have never seen any increase in mileage with oil change or transmission oil flush. But with this filter got an immediate boost to 30-32 for first 4+ full tanks. Also the RPM went down by couple hundred rotations now. But the mileage started going down now, so it is not a permanent one. But for a filter which you can leave it for life time in car, it is worth a investment than a regular one, which I change every 5k miles.Also using a Mobil1 synthetic oil (use the correct one out of 5w or 10w using the mobil website calculator) for oil changes considerably reduced the engine rpm need and the heat it generated.

Engine sounds nice and runs smoother after installation. Also, the car seems willing to cruise longer on its own when I do not step on the throttle at all.Milage improvement? Not sure, cause I enjoy it so much and now more often on full throttle :P

Perfect fit. Not sure about mileage yet.

Incredibly easy to install, took me only a few minutes. Note: when installing the filter, notice that, because of how snugly the air filter fits compared to the OEM filter, the lid to the air filter compartment needs a slightly greater amount of pressure to close.My 98 corolla had an immediately noticeable lower idle speed (800 RPM versus 1100 or so). My gas mileage appeared to increase about 2/3 mpg. I seem to average about 34MPG now versus the 30MPG or so i was getting previously.