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K&N 33-2187 Replacement Air Filter | 
 enlarge | Brand: K&N
Category: Automotive Parts And Accessories
List Price: $66.12
Buy New: $39.94
You Save: $26.18 (40%)
New (19) from $39.94
Rating:  3 reviews
Media: Misc.
Shipping Weight (lbs): 1
Dimensions (in): 13.5 x 7.8 x 1.8
MPN: 332187
Model: 33-2187
UPC: 024844084378
EAN: 0024844084378
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
K&N Replacement Air Filter 33-2187
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| Customer Reviews:
 K&N Filter in 2009 Mariner October 28, 2008
Joseph M. Escue
Main reason for ordering this filter was to maybe improve MPG on a 2009 Mariner. When the hurricane hit Texas we had a fuel crisis here in Tennessee if you guys recall. You couldn't count on getting fuel and some places were charging $5.00 plus a gallon. It was fairly easy to install. Anyone with basic automotive maintainance skills can do it. After about three days of normal driving we gained an additional 0.5 MPG giving us a total of 21.3 MPG. We also gained a little additional horse power. We had hoped to gain maybe an additional 10% improvement in mileage. That's typical with high flow filters. With fuel at $5.00+ a gallon - if you can get it - every bit helps. We've been running this filter for around six weeks now. We haven't seen any additional fuel efficiency increases, but we're happy with it. Besides we won't need to buy another air filter for the life of the Mariner probably. So we will recoup the cost. I have a neighbor who puts them in all his vehicles and he reports an additional 2 - 3 MPG in his Nissan Altimas and from 2 - 5 in his diesel powered Ford trucks. I've heard some folks say that higher air flow must mean more dirt in the intake to screw with the engine. I can't say about that. But I would think that if you drive mostly on paved suburban streets like we do that's not generally a concern. If you were driving dirt roads and off roading then I might be concerned about more dirt being sucked into the engine. As far as whether I recommend this filter goes, I can only say that in our case it didn't provide the performance improvement we had hoped for, we have a brand new vehicle still 1500 miles away from first maintainance so I'm guessing that the engine is still tight and its in spec condition so we probably aren't going to see a big imporovment. The most benefit may actaully come from older (NOT NEW) vehicles. BTW: I might mention that the Mariner has the 3.0 V6 duel OHC engine. So if we can get 21.3 MPG in normal suburban driving/traffic then we are probably doing really good. I'm certain the 2000 Impala we had prior to the Mariner didn't do that well. So, I can't actively go around telling all my friends to install one of these based solely on improving mileage. I can tell you that it did make a difference of +0.5 MPG on a new V6 originally getting 20.8 MPG. So you have to decide if going from 20.8 to 21.3 MPG is worth it.
 K&N Air Filter August 9, 2008
BobV (Vernon , NJ USA)
This product arrived quickly and was a drop in replacement. My 3.0 litre Escape now feels more responsive. The transmission also seems to shift better. A great upgrade that anybody with 10 minutes of spare time can do.
Great Product July 15, 2007
Kimberly Eggleston
2 out of 2 found this review helpful
These filters are great. I have used them on the past 5 vehicles and current vehicles I own. They have consistenly added at least 2 miles per gallon on my average fuel consumption. It is much cheaper to burn air than gas. I have never had to reoil one; they are guaranteed for 100,000 miles I think, so I've never had to replace one. They quickly pay for themselves. The price on this website was the best that I found anywhere.
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