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🔧 k&n engine air filter: high performance, premium, washable replacement filter for 2012-2019 honda/acura/kia/hyundai (civic si, ilx, nsx, k4, mistra) logo

🔧 K&N Engine Air Filter: High Performance, Premium, Washable Replacement Filter for 2012-2019 Honda/Acura/Kia/Hyundai (Civic Si, ILX, NSX, K4, Mistra) Review

5

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Excellent

Revainrating 5 out of 5  
Rating 
5.0
🔍 Car Filters, 🛠️ Replacement Parts

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Details

Product GradeReplacement Part
BrandK&N
Fit TypeVehicle Specific Fit
MaterialPaper
Item Dimensions LxWxH14.13 x 11.38 x 8.69 inches

Description of 🔧 K&N Engine Air Filter: High Performance, Premium, Washable Replacement Filter for 2012-2019 Honda/Acura/Kia/Hyundai (Civic Si, ILX, NSX, K4, Mistra)

ULTIMATE LONGEVITY: 10-Year/Million Mile Limited Warranty protects for the life of your vehicle. 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. WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants. LOW-MAINTENANCE DESIGN: 50,000 miles before your first cleaning under normal highway driving conditions. HIGH QUALITY: Made in America. RACE TESTED: The Official Air Filter of NASCAR. Trusted on the racetrack—made for your vehicle.

Reviews

Global ratings 5
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Type of review

Revainrating 5 out of 5

Solid product for a new car

First air filter change on a new car and last when works as promised with proper cleaning Benefits - Saves money in the long run - Dripping right in the engine Feels smoother as you rev up and decrease, not increase, lol. Tried and tested, used on older cars and recommended to the family. I tend to do my own work when I can save some money for such simple things.

Pros
  • Dope 🔥
Cons
  • poorly thought out

Revainrating 5 out of 5

Quality filter for 9th gen Si

Fits my 2013 Civic Si as advertised. I am not a reducer at all and certainly not a modder. Installation took about 15 minutes of which I watched 10 minute installation videos on YouTube. Be careful with the mass air flow sensor; they are gentle. Installation was very easy to do with a few simple tools. The post-install improvements were VERY subtle (as expected). I noticed a slight increase in throttle response and noise under load. I've heard big tales of a 10mpg increase and wild horsepower…

Pros
  • Free for educational purposes
Cons
  • Good but not great

Revainrating 5 out of 5

K&N is back in business with great products! (DAMN DANIEL!)

fits my 2012 Honda Civic Si Sedan perfectly. I hear a slight growl and a much more pleasant roar as the engine revs up, but as far as horsepower goes, I can guarantee you it won't go above 1 or 2hp. The main reason I bought it was that it can be reused, it can be washed. Love it, I no longer have to buy paper filters every time. I have had K&N filters on all my cars and I can say they are truly amazing. I also have a 2005 Acura RSX Type-S and a K&N Typhoon SRI and I love them. it's a much…

Pros
  • Certified
Cons
  • Guard

Revainrating 5 out of 5

Worth the money - air filter

I had the idea of buying it for several of my cars. Now I have a 2015 Civic Si Sedan and I ended up buying it for this, I forgot I didn't change the air filter. I did it in the showroom and swore I changed the engine paper but I didn't and upon inspection it was gross hahaha. I was wondering why my fuel economy was crap and the car was hesitant to accelerate. You can immediately see a HUGE difference in size between the standard filter and this K&N filter. K&N is much thinner. About half the…

Pros
  • Great design
Cons
  • Negative gift

Revainrating 5 out of 5

Detailed Review of the K&N 33-2473 Filter for Honda Civic Si

First of all a great filter at a great price. I had a few alignment issues getting it to fit properly on a 2014 Civic Si, but it eventually snapped into place and all was well. As for the performance increase, there really is none. Just in case, after changing the filter, we put the car on a dyno and "lost" 1.5 hp. I say "lost" in quotes because we are likely to actually break even as there will always be small swings on the dyno. However, keep in mind that this was done on a car made out of…

Pros
  • GOLS Certificate
Cons
  • Available in Black Only