











🔴 Upgrade your airflow, upgrade your drive!
The K&N 33-2300 Replacement Air Filter features a precision-machined exterior and lightweight design at just 404 grams. Compatible with multiple OEM part numbers, this heather red filter offers both durability and style, ensuring optimal engine performance and a standout look under the hood.











| ASIN | B000CO80OW |
| Best Sellers Rank | 95,826 in Automotive ( See Top 100 in Automotive ) 727 in Car Air Engine Air Filters |
| Brand | K&N |
| Customer Reviews | 4.5 4.5 out of 5 stars (506) |
| Date First Available | 7 Aug. 2012 |
| Exterior | Machined |
| Item Weight | 404 g |
| Item model number | 33-2300 |
| Manufacturer | K&N |
| Manufacturer part number | 33-2300 |
| Model | KN 332300 |
| OEM Part Number | 16546JB000, 1780122020, SU00300319 |
| Product Dimensions | 28.91 x 14.94 x 2.69 cm; 403.7 g |
S**S
Really happy with this
Really happy with this. As others have said it takes 5 mins to fit (just remember to look at the orientation of the paper filter as you take it out). Adds some noise to the engine note (bit more growl) and throttle 'feels' more responsive.
M**O
K&N Performance Air Filter
Ordered this from Amazon as it was the cheapest place I could find it. Having read many reviews and reports regarding the effectiveness of this filter over the standard OEM paper filter I thought I would give it a try. Arrived via 1st Class post in 2 days and took 5-10mins to fit (it does not come with any fitting instructions but you do need to note it only goes in one way (see indents in edges of filter in line with the OEM filter indents). Results were noticeable in my Toyota GT86 TRD with throttle being more responsive and accelleration smoother. At the time of writing this I am unable to comment on whether it does offer more HP and better fuel economy as these benefits are not as tangable as the throttle response difference. You can get more information from knfilters.co.uk. Over all I am please with the purchase as for a small investment you do get a noticeable performance gain.
K**L
Works like it should.
This replaced the stock air filter on my GT86. The standard air filter looks like a massive white pillow jammed in the air intake compared to the much thinner, sticky item. Took about a minute to fit and the difference is noticable. The car runs much better from cold and there's more induction noise that makes it sound a bit throatier. The car also feels like it revs a little more freely as well. You won't see any real horsepower gains without a tune and replacing the exhaust manifolds though. Still, a worthwhile upgrade.
C**S
Much smoother drive on the lower rpm range
Quick and easy to install, The car feels to run much better from cold start and just generally revs smother on the lower rpm range, not sure on a hp increase but definitely worth the money.
C**E
Always go K&N
Can't say it's improved the power of the car as gains are minimal. However, you can feel that it is more free flowing and the responsiveness of the car is better. Sounds more throaty too!
J**O
Good, but a snug fit
Good product but it is a bit fiddly, the fitting is snug
K**J
Absolute perfect!
My GT86 has got 6 horsepower more now, but you cannot notice the increase! However, what you can feel is that it has become more free flowing, and the responsiveness of the car is noticeably better. Highly recommended!
C**N
Authentic K&N filter
Great, fitted perfectly. Authentic product
S**W
Tut was er soll, einmal im Jahr raus und durchgespühl, anschließend trocknen lassen und wieder eingebaut. Qualitäts mäßig nichts zu meckern.
M**T
par rapport à la pièce Toyota ya pas photo sur la qualité et ça se monte sans pb
M**I
Lo compré para mí gt86 y aunque haya gente que diga que no nota nada, para mí la sensación de llevarlo con el filtro oem durante un tiempo y al cambiarlo al k&N note tal vez una mejora en bajas y el sonido un poco más ronco, pero es algo muy personal creo yo. De todos modos mi principal interés es tener un filtro de por vida para evitar ir cambiándolo por los de papel.
M**L
Montato appena arrivato nella mia GT86, è stato abbastanza difficile inserire il filtro correttamente perché è flessibile quindi ogni volta che lo "incastravo" nella scatola del filtro si spostava quando provavo a richiuderlo, ma con un po di sudore ed imprecazioni è entrato perfettamente, dopo circa 1 settimana di utilizzo ho notato subito che i consumi anche se di poco sono scesi, il sound è migliorato e ai bassi regimi il motore fa meno fatica, vedremo come sarà dopo la prima rigenerazione ma per ora prodotto molto valido, consiglio l'acquisto
A**D
Very easy to install. I have a 2017 BRZ with 1,000 miles at filter change. Before install keep close attention to the how the old filter is positioned, because 3 corners are rounded, and one corner is L-shaped. The K&N filter also has one corner L-shaped so position that corner on the same side as the original. I watched a lot of YouTube videos on how to install, but it came down to unclipping the 2 clips on top, open the rear cover as far as it could go, removed the manufacturer's filter, checked the cleanliness of the inside of the intake tube area, and slid the new K&N filter in. The opening was wide enough, and I was careful not to damage any tubes, wires, or sensors. Made sure the gasket of the new filter fit within the grooves of the housing. The K&N filter is lined with oil so keep it in the plastic until you are ready to install. I have no access to a dyno - so no way to measure HP gain; otherwise unnoticeable. However, there is a noticeable gain in throttle response. I also noted my mileage before install at 33.5 mpg, and after driving for 2 days with the new filter I notice the average on my dashboard display was 34 mpg (no change to my driving routine). I am getting higher avg. mpg's, because I am not running my AC since outside temps are still quite comfortable.
Trustpilot
3 weeks ago
2 weeks ago