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k&n 33-2478 engine air filter: premium high performance replacement for nissan altima l4 2.5l (2013-2018) logo

K&N 33-2478 Engine Air Filter: Premium High Performance Replacement for Nissan Altima L4 2.5L (2013-2018) Review

3

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Excellent

Revainrating 5 out of 5  
Rating 
5.0
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Details

Product GradeReplacement Part
BrandK&N
Fit TypeVehicle Specific Fit
MaterialPaper
Item Dimensions LxWxH12.25 x 1.75 x 14 inches

Description of K&N 33-2478 Engine Air Filter: Premium High Performance Replacement for Nissan Altima L4 2.5L (2013-2018)

ENGINEERED POWER: State-of-the-art filtration media provides up to 50% more airflow than disposable paper filters to increase power and acceleration. Clogged or dirty air filters can reduce your vehicle’s acceleration by up to 10%. EASY INSTALLATION: Pre-oiled and ready to drop into your factory air box. One of the easiest and most cost-effective upgrades for your vehicle for quick performance gains. SAVES MONEY: K&N high-flow replacement air filters will save you $250 over 10 years by avoiding disposable filters. ECO-FRIENDLY: Using a washable, reusable product helps reduce replacement waste. A K&N filter will last longer than 10 disposable filters. Designed to boost horsepower and rate of acceleration. Can be cleaned and used again. High air flow with exceptional filtration. Lasts up to 50,000 miles before cleaning is required depending on driving conditions. Works with original equipment manufacturer vehicle electronics.

Reviews

Global ratings 3
  • 5
    3
  • 4
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  • 3
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  • 2
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  • 1
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Type of review

Revainrating 5 out of 5

K&N always delivers the best filters on the market

K&N always delivers the best filters on the market. A noticeable improvement in throttle response and engine noise, but the ability to reuse the filter justifies its price. The OEM filter is $25, so for the price of two OEM filter changes, I'd rather have a lifetime reusable filter.

Pros
  • Designed to increase power and acceleration speed
Cons
  • Faulty

Revainrating 5 out of 5

Air Filters Improved My Mileage

As advertised, this filter fits my Altima - just plug it in and you're done. I can't say it increased performance, but I did notice an increase in mpg of about an additional 1 mpg. It's not much, but I think the filter is K&N compliant. I plan on cleaning the filter about every 12 months, but for now I'm just enjoying the smooth acceleration and extra mileage.

Pros
  • EASY INSTALLATION: Pre-lubricated and ready to install in your airbox. One of the easiest and most economical upgrades to your vehicle for a quick performance boost.
Cons
  • Vulgarity

Revainrating 5 out of 5

K&N Never Disappoints

This is the 4th K&N filter I have used on 4 different vehicles. The previous ones have been more than satisfactory and worth the extra cost for better mileage and protection. So far my 2013 Nissan Altima SL with 4 cyl. gets (almost) the 27 City/38 Highway mileage it claims: 26.2/36.6mpg. After driving 5,491 miles on the car's odometer, with the paper element air filter installed and driving properly and sensibly, I was pleased with the performance of the original filter. Even under ideal…

Pros
  • SAVE MONEY: K&N Heavy Duty Replacement Air Filters will save you $250 over 10 years by eliminating disposable filters.
Cons
  • The list will be long.