K&N 33-2125 Replacement Air Filter | 
 enlarge | Brand: K&N
Category: Automotive Parts And Accessories
List Price: $66.07
Buy New: $39.91
You Save: $26.16 (40%)
New (42) from $39.91
Avg. Customer Rating:  4 reviews
Sales Rank: 9009
Media: Misc.
Shipping Weight (lbs): 1.1
Dimensions (in): 11.6 x 10.4 x 1.8
MPN: 332125
Model: 33-2125
UPC: 024844041036
EAN: 0024844041036
ASIN: B00062Z46C
Availability: Usually ships in 1-2 business days
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| Features:
| • | A high-flow, washable filter that delivers the maximum amount of air possible into your engine while providing superior filtering | | • | Multiple layers of cotton fabric sandwiched between pleated aluminum screen capture airborne dirt particles | | • | Improves horsepower and torque | | • | Emission legal in all 50 states, will not void manufacturer's warranty | | • | Filters can be cleaned over and over, and are backed by a million mile limited warranty |
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| Editorial Reviews:
Product Description
These reusable K&N Filtercharger air filters outflow any other filter--up to 900 cfm--for power gains of up to 15 HP. They use a surgical cotton fabric soaked in oil as their tack barrier. Sandwiched between an aluminum screen wire, the holes in the cotton catch tumbling air and straighten it out. Since air moving in a straight line flows faster, the filter actually improves airflow. They can be covered by up to 1/4 in. of debris before air restriction makes cleaning necessary. The filters come pre-oiled, and many are available as a direct fit for your application.
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| Customer Reviews:
 K&N Air Filter March 31, 2008
Great buy! Much cheaper than anyone else i could find. Installation took 5-10 minutes. I dont notice any change in performance yet. The part fit great. Thanks Amazon.
IT REALLY WORKS July 3, 2007
3 out of 3 found this review helpful
All i can say is i have a 2003 vw passat that would on any given day range from 18mpg in town and 24mpg highway,but with the adding of this filter it now does 25mpg city and 31 highway and also more hp. WELL WORTH THE MONEY.....
 K&N 33-2125 Replacement Air Filter for my 2001.5 Audi S4 April 12, 2007
2 out of 3 found this review helpful
I know K&N has a very good reputation and there cold air system did increase the hp greatly on my 99' F-150. But, there always seems to be a fit issue. For my truck their engineering documentation that was sent with the cold air kit did not completely jive with my truck. So, I had to add lib a bit at times. For my S4 the fit was less than perfect. It just didn't fit in the stock air box the same as the Mann brand filter that I had been using. But, I am looking forward to not having to buy anymore filters. They are very easy to clean.
Great filter June 30, 2006
3 out of 3 found this review helpful
This is the best possible filter that doesn't effect the warrenty.
It improves performance and gas mileage, and never needs to be changed. It is well worth the money.
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