Product Description:
K&N 33-2031-2 Replacement Air Filter
K&N's lifetime replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. The air filter is custom-designed to fit into your existing factory air box and the drop-in design means adding performance is simple. The unique design of the air filter features multiple layers of cotton fabric which capture airborne dirt particles. The filter is washable and reusable and can be easily cleaned and oiled. It lasts up to 50,000 miles before cleaning is needed.
Customer Reviews:
Great Filter, As Long As It's Clean (2010-04-18) Rating: 5/5
Make no mistake, K & N filters are top notch, but beware of people who claim huge improvements in mileage and power (i.e. 10-15%). With the billions of dollars the auto industry has spent trying to improve gas mileage and power, every car made in the world would have these as original equipment if such gains were possible. If life were only so simple. People who replace a CLOGGED filter with a new one will notice an improvement (if it's clogged badly enough, the improvement might be that your car runs now). Definitely better than many in fit and quality, plus being reusable, but a magic bullet it is not. A clogged K & N filter will also cause performance problems, it's just that all you have to do is clean it properly, and you are off and running; whereas a paper filter, you have to throw it out.
Super-star air filter (2010-04-18) Rating: 5/5
The era of mandatory field-trips to the dealership for a new filter every 15,000 miles came to a close. Enter the washable convenience of K&N.
Installation intuitive, fit great, no snags.
Have not noticed significant difference in gas mileage, nor in dynamics of my 350-Z, but will continue to watch fuel consumption as the most likely area for improvement given my car's configuration.
Would pursue other mods,like exhaust mods for example, first if seeking fast and noticeable bump in power output.
Plan on buying 7 aire filters, just buy this (2010-03-15) Rating: 4/5
I have been trying to find a cheaper alternative to the KN, but when I looked at the price, it was the same as buy 7 Walmart fram air filters. I off road so go through filters fast (I know you are not suppose to use KN off roading, but I do). Decided to buy the filter and never think about the filter again.
better gas mileage (2010-01-30) Rating: 5/5
since I've installed this filter my gas mileage around town has gone from around 18mpg to around 22mpg!and I've done nothing else that would have effected the mpg!
Didn't see any big differences (2009-10-29) Rating: 3/5
Changed from a paper air filter to the K&N. Didn't see any improvement in fuel milage nor experience any improvement in horse power. Hopefully I can save some money base on it being a re-usable filter.
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