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 must say, i am thoroughly impressed. I put this baby in expecting a change that was barely noticeable. I instantly saw a drastic difference in my acceleration and sound of my engine. I realized at this point just how bad my old air filter was. I never thought an air filter could make this much of a difference. I will be buying K&N air filters for all my cars for the rest of my life. Don't second guess yourself, don't think, just buy it. You will not regret it. Best purchase for my car I have made in a long time.

Best filter in the business. Cleaning it correctly and re-oiling is and has always been the secret. Love them.

This is the best way to not only save gas, but it improves your ride. When more air is put into your gas when it burns it makes the combustion larger. SO, you get more from your gas. I am not an expert. However, I can tell the difference. My car is an automatic and when its between gears it runs much smoother and doesnt rev as much between gears.I went from filling my tank every 7 days to every 10. So, I saved on serious gas.regardsfd

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.

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.

Perfect fit. The initial cost is double than a parts store air filter, but when this one gets dirty, you clean it, not replace it. Great product. A must have for every car owner.

I purchased this to replace a disposable filter on my 1998 Corolla that I had neglected (forgot) to change. What a difference it made! I went from filling up my gas tank every 10 days to every 15 days. Not only am I saving on my gas mileage, but I won't have to buy another filter again. I've already cleaned it and resprayed it and it works like new again! I definitely would buy this again.

I returned this item because it boasts increased airflow to your engine, but unless you have a powerful car that requires a lot of air, you don't need this. Also, upon inspection, I realized that the reason that there is increased airflow is because the gaps in the filter are large compared to that of my regular paper filter. So yes more air is going to the engine, but there's also more dust and dirt that will pass through the filter and into the engine.