K&N or WORKS Drop In Performance Air Filter? - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

86geek · 07-15-2016, 01:06 PM

apexi power air filter nuff said.

https://www.rallysportdirect.com/fit...i-panel-filter

mav1178 · 07-15-2016, 02:06 PM

Blitz also has a drop-in filter for $46 MSRP:

https://www.flickr.com/photos/137904...57665823273100

sly · 07-15-2016, 04:31 PM

I personally will not be using K&N anymore. I used them for years in various vehicles and have since abandoned them. They are made of cotton and eventually shrink over time. At least mine did... Once it shrinks, it no longer protects. They were designed mostly for racing applications where long term reliability is not a concern. They load up faster than some other filters, reducing long term air flow and don't filter as well which lets dust into the engine. I also have some concern over an oiled filter being placed ahead of my sensitive MAF sensor. Oil contamination attracts dust. That's why these filters work, at first... But these oil droplets also get pulled into your intake and over time may accumulate dirt on your MAF.

Here's an article I read that explains some of the differences between filters. http://www.nicoclub.com/archives/kn-vs-oem-filter.html

Accumulative Gain:
“Accumulative Gain” is the total amount of dirt that passed through the filter during the test.

The only thing that passed more dirt was a foam filter.

If I were going to go with an aftermarket filter, I would stay away from oiled cotton and go with an oil free synthetic media such as a Cosworth filter.

Mr.ac · 07-15-2016, 05:55 PM

Quote:

Originally Posted by JazzleSAURUS

I like the dryflow filter options, oil can get on the MAF and cause failures/malfunctions.

Depends how much oil you put after cleaning it. If it really caused major problems TRD would have gone with a dry filter. And a TRD filler is a rebadged K&N one.

churchx · 07-16-2016, 08:46 AM

But TRD might be also a bit more track focused, and they also provide full intake kit with much bigger airbox, which very probably may provide less airflow resistance even with normal filtering due larger filter area? Though costs are on high side vs drop-in filter and hardly justify gains.

Peaty · 07-19-2016, 08:39 PM

I got my green filter today and installed it. I have to say the filter I removed was pretty nice. I can's say I've seen one quite like it before except maybe a cabin air filter. The pleats are fuzzy and very deep, lots of surface area. It's the OEM filter marked as a Toyota part. The pleats stick out pretty far on both sides. Here are some photos compared to the green filter. If anyone has a photo of a K&N filter I'd like to see it. I'm wondering which way the pleats go. Parallel to the ground or perpendicular like the green and OEM filter. In any case here are some photos. The green filter fit fine with no issues. I'll give it a go and see how I like it.

Note OEM filter has ~4,650 miles on it.

ShadowReaper · 07-19-2016, 09:11 PM

I went with K & N simply because Wal-Mart had it for sale and I wanted to get rid off the coffee filter. More responsiveness combined with my exhaust

Mr.ac · 07-19-2016, 09:17 PM

That green filter looks like exactly like the K&N.

I also went with a K&N cause Walmart cheap.

Lantana frs · 07-19-2016, 09:58 PM

My k&n was a pita as far as fitment goes and once the ecu eventually corrects the afr power gains will be immeasurable. From my experience the tune is everything. Header and tune, unless of course you figure a way to cut 300 lbs from the car. My current set up is oft and power blocks. With proper temperature, barometric pressure and planetary alignment it feels adequate.

07-15-2016, 01:06 PM	#15
86geek Senior Member Join Date: Oct 2014 Drives: 2015 FRS Asphalt Location: Honolulu Posts: 1,001 Thanks: 1,302 Thanked 343 Times in 265 Posts Mentioned: 6 Post(s)	apexi power air filter nuff said. https://www.rallysportdirect.com/fit...i-panel-filter __________________ Opti-Coat & Cquartz Finest, Apexi Drop in Filter, 2.5 Perrin Res. Catback Exhaust

07-19-2016, 08:39 PM	#20
Peaty Scooby***s Guy Join Date: Mar 2016 Drives: 2019 Impreza Sport - MT Location: Lawrence, KS Posts: 87 Thanks: 38 Thanked 75 Times in 42 Posts Mentioned: 1 Post(s)	I got my green filter today and installed it. I have to say the filter I removed was pretty nice. I can's say I've seen one quite like it before except maybe a cabin air filter. The pleats are fuzzy and very deep, lots of surface area. It's the OEM filter marked as a Toyota part. The pleats stick out pretty far on both sides. Here are some photos compared to the green filter. If anyone has a photo of a K&N filter I'd like to see it. I'm wondering which way the pleats go. Parallel to the ground or perpendicular like the green and OEM filter. In any case here are some photos. The green filter fit fine with no issues. I'll give it a go and see how I like it. Note OEM filter has ~4,650 miles on it. Attached Images __________________ ~peaty 2019 Impreza 5 Dr - MT, 2023 Forester Limited - 2001 Miata SE, MT. Kids 2023 BRZ Limited MT, Kids 2015 Crosstrek Premium CVT

07-19-2016, 09:11 PM	#21
ShadowReaper Indulgent Tormenter Join Date: Dec 2015 Drives: 15' LTD Subaru BRZ DGM Location: FL Posts: 495 Thanks: 336 Thanked 129 Times in 88 Posts Mentioned: 4 Post(s)	I went with K & N simply because Wal-Mart had it for sale and I wanted to get rid off the coffee filter. More responsiveness combined with my exhaust __________________ Instagram: Gabe.it.the.ole.college.try

07-19-2016, 09:17 PM	#22
Mr.ac [insert cool phrase here] Join Date: Aug 2015 Drives: BRZ Premium Location: Central Coast CA Posts: 2,368 Thanks: 709 Thanked 1,559 Times in 930 Posts Mentioned: 30 Post(s)	That green filter looks like exactly like the K&N. I also went with a K&N cause Walmart cheap. __________________ New daily driver - Subaru BRZ Premium Weekend fun/track car - '91 MR2 Turbo Gen3 Old daily driver - '88 MR2 Supercharged

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07-15-2016, 02:06 PM	#16
mav1178 Senior Member Join Date: Apr 2013 Drives: 2005 Toyota Camry Location: 91745 Posts: 6,562 Thanks: 493 Thanked 6,100 Times in 3,030 Posts Mentioned: 95 Post(s)	Blitz also has a drop-in filter for $46 MSRP: https://www.flickr.com/photos/137904...57665823273100

07-15-2016, 04:31 PM	#17
sly Senior Member Join Date: Dec 2015 Drives: 2016 Cosworth 2.2 BRZ Location: TN Posts: 339 Thanks: 89 Thanked 204 Times in 127 Posts Mentioned: 10 Post(s)	I personally will not be using K&N anymore. I used them for years in various vehicles and have since abandoned them. They are made of cotton and eventually shrink over time. At least mine did... Once it shrinks, it no longer protects. They were designed mostly for racing applications where long term reliability is not a concern. They load up faster than some other filters, reducing long term air flow and don't filter as well which lets dust into the engine. I also have some concern over an oiled filter being placed ahead of my sensitive MAF sensor. Oil contamination attracts dust. That's why these filters work, at first... But these oil droplets also get pulled into your intake and over time may accumulate dirt on your MAF. Here's an article I read that explains some of the differences between filters. http://www.nicoclub.com/archives/kn-vs-oem-filter.html Accumulative Gain: “Accumulative Gain” is the total amount of dirt that passed through the filter during the test. The only thing that passed more dirt was a foam filter. If I were going to go with an aftermarket filter, I would stay away from oiled cotton and go with an oil free synthetic media such as a Cosworth filter.

07-16-2016, 08:46 AM	#19
churchx Senior Member Join Date: Mar 2015 Drives: 2014 GT86 Location: Latvia, Riga Posts: 4,336 Thanks: 698 Thanked 2,091 Times in 1,437 Posts Mentioned: 53 Post(s)	But TRD might be also a bit more track focused, and they also provide full intake kit with much bigger airbox, which very probably may provide less airflow resistance even with normal filtering due larger filter area? Though costs are on high side vs drop-in filter and hardly justify gains.

07-19-2016, 09:58 PM	#23
Lantana frs Senior Member Join Date: Jun 2016 Drives: 13 frs red Location: Lantana fl Posts: 448 Thanks: 51 Thanked 198 Times in 115 Posts Mentioned: 1 Post(s)	My k&n was a pita as far as fitment goes and once the ecu eventually corrects the afr power gains will be immeasurable. From my experience the tune is everything. Header and tune, unless of course you figure a way to cut 300 lbs from the car. My current set up is oft and power blocks. With proper temperature, barometric pressure and planetary alignment it feels adequate.

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