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💨 Elevate your ride with airflow that commands attention.
The K&N Engine Air Filter 33-2399 is a premium, washable panel filter designed for select Nissan, Infiniti, and other models from 2007-2019. Engineered to increase horsepower and acceleration by providing up to 50% more airflow than disposable filters, it installs easily as a direct factory air box replacement. Durable and reusable, it’s backed by a 1,000,000-mile limited warranty, making it a smart, long-term upgrade for performance-minded drivers.











| ASIN | B001C4SL04 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | 339,993 in Automotive ( See Top 100 in Automotive ) 2,495 in Car Air Engine Air Filters |
| Brand | K&N |
| Brand Name | K&N |
| Customer Reviews | 4.7 out of 5 stars 655 Reviews |
| Fit Type | Vehicle Specific Fit |
| Fit type | Vehicle Specific Fit |
| Global Trade Identification Number | 00024844199782 |
| Included Components | 1 air filter |
| Item Dimensions L x W x H | 18L x 78W x 100H millimetres |
| Item Shape | Rectangular |
| Item Type Name | K&N 33-2399 Replacement Air Filter |
| Item Weight | 0.39 Kilograms |
| Manufacturer | KN Filters Inc. |
| Manufacturer Part Number | 33-2399 |
| Manufacturer Warranty Description | 1,000,000 Miles |
| Model Number | 33-2399 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of items | 1 |
| OEM Equivalent Part Number | 16545JK20A, 16546JK20A, 1654LK20A, 71743887, AY120NS050 |
| OEM part number | 16545JK20A, 16546JK20A, 1654LK20A, 71743887, AY120NS050 |
| Product Grade | Performance Part |
| Product dimensions | 18L x 78W x 100H millimetres |
| Product grade | Performance Part |
| UPC | 024844199782 |
| Unit Count | 1.0 count |
H**6
K&N Filter 370Z
No real difference in induction noise on the 370Z. However as these last the lifetime of my car I will save not putting cheap over priced ones at service intervals. Plus added bonus of engine bay bling K&N stickers. =)
C**N
Tres bonne qualité
Qualité kn impeccable
M**E
Think 2 twice before putting those kN filters on.
Got those for a 2015 370z car is stock as if new from mechanics point of view. After 6 to 8 weeks the car turned to have a huge acceleration lag and I believe the MAF’s need to be either cleaned or replaced. I would recommend to think 20 times before you jump into flushing OEM’s parts into good marketing after market ones.. Not happy with the results at all
T**R
makes a difference.....
QX50 - requires 2 air filters so beware :-) but glad i put them - the car does feel (good) different....
R**Z
Top
Top
W**D
K&N is the best and only air filter you will ever need on any engine.
I have had K&N in every car that I have owned. The best air cleaner out there. I have always liked how you can clean them let dry,re-oil and install back into the car. the cleaning kit is not too bad on price and you can find it at any auto store. Hold any air cleaner up to a light and look through it next to a K&N and you will see the difference! Its plan as day. Very easy to install on my new to me 2010 Infiniti g37 sedan. I had them both installed with warning stickers in less then 5 min. Worth the up front cost because i will never have to buy another air filter for this car again. My last daily driver has 250,000 miles on it. That car I,m passing down to my son. It still has the K&N air filter on it that I installed when it was new.That K&N air filter looks like new after I cleaned it,re-oiled and installed. I'm 42 now and will have this product in every car that I every own until I'm gone.
Trustpilot
1 month ago
1 day ago