K&N 33-2031-2 Replacement Air Filter
K&N 33-2031-2 Replacement Air Filter
Product Rating
(23 reviews)
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Model #: 33-2031-2
Brand: K&N
Best Price:
$41.59

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Product 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
Product Description
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.




Total Reviews: 23
Review Page: 2 of 5
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03 g35
dropped this into my 03 g35 coupe with no problem. didnt notice any gains in power or mpg. excellent filter over oem.
 
Terrible experience
At first I was very excited by this filter. Even wrote a glowing review.

That was before the hot weather arrived, though whether this was a cause or coincidence is unknown. All I know is that, after 10 days, the Check Engine Light came on and the car refused to go above 2,500 RPM. Kept cutting out and jerking back and forth. Put the stock filter back in and the problem disappeared. Whether it is simply that Nissans/Infinitis with the V6 engine are particularly sensitive to fuel/air mixes, whether it's the weather or whether the design is bad, this filter did not work. I am returning it.
 
Finally one item I don't have to worry about changing!
This K&N filter is one of the best investments I have ever made! Instead of purchasing a new filter every year, making a one time investment of about $46 will not only save you money but also increase your horsepower and gas mileage! In the end, it is a great product and worth the investment!
 
Nice product, Great Service!
I have to admit that I was a skeptic. However, the price for the K&N was close to the inflated dealer OEM price. I have noticed increased HP and better fuel efficiency on my Toyota Sequoia. It is hard to quantify but I liked the results enough to buy another filter for our other vehicle. Shipping was very fast and product was well packaged. I would definitely purchase again... and I did.
 
Great air filter.
I was skeptical at first with this air filter which was a greater cost than other filters. After installing it, I feel the engine gives out a bit more power. You can definitely feel the difference in the engine. Plus it is reusable.
 
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