View Poll Results: Would you get K&N air filter?
Voters: 328. You may not vote on this poll
K&N Air filter: worth it?
#1
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K&N Air filter: worth it?
im talking about their OEM replacement filters that are supposed to last for a lifetime
it seems that i have to clean it every 40,000~50,000 miles
is anyone here using these?
i have a 2001 GS300 with stock intake and just want to see if K&N is worth getting?
it seems that i have to clean it every 40,000~50,000 miles
is anyone here using these?
i have a 2001 GS300 with stock intake and just want to see if K&N is worth getting?
#2
The K&N air filters are actually pretty crappy. I used to use them on all my cars but when i used to get my oil analysis back it would always have a high silica or silicon(dirt) numbers. Believe it or not the best air filters i have used have been the cheapo fram. Make you oil the filter edges before setting it in place. That helps capture dirt particles.
#5
Lexus Champion
Improved performance is debatable.
I have a new one in the box I drove a few days and had no change in mileage or performance.
It did cause a MAF failure due to the filter oil, factory installed.
That was a $187 expense above the $24 for the filter itself.
Currently running a OEM filer.
I have a new one in the box I drove a few days and had no change in mileage or performance.
It did cause a MAF failure due to the filter oil, factory installed.
That was a $187 expense above the $24 for the filter itself.
Currently running a OEM filer.
#6
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In my opinion, I think one of the main reasons why it has a slight improved performance is because it allows more air to flow through, thus filtering less. It actually shouldn't have better gas mileage. K&N filters are basically compromises for having more air flow giving less filtering.
If they were that much better in performance and even fuel economy, I'd think Lexus would've put it in there in the first place.
If they were that much better in performance and even fuel economy, I'd think Lexus would've put it in there in the first place.
#7
In my opinion, I think one of the main reasons why it has a slight improved performance is because it allows more air to flow through, thus filtering less. It actually shouldn't have better gas mileage. K&N filters are basically compromises for having more air flow giving less filtering.
If they were that much better in performance and even fuel economy, I'd think Lexus would've put it in there in the first place.
If they were that much better in performance and even fuel economy, I'd think Lexus would've put it in there in the first place.
Also Lexus is in the business of making $, its priority is very different than an individual owner. For example, most people would love to have better OEM tires for longe wear, low noise, and better traction but Lexus tend to find the cheapest tires to get us out of dealership's door. For RX300, OEM Goodyear Integrity and Bridgestone Dueler have the worse Tire Rack ratings from owners, Lexus choose these tires for a reason: low cost.
Last edited by TunedRX300; 11-16-06 at 10:44 AM.
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#8
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Improved performance is debatable.
I have a new one in the box I drove a few days and had no change in mileage or performance.
It did cause a MAF failure due to the filter oil, factory installed.
That was a $187 expense above the $24 for the filter itself.
Currently running a OEM filer.
I have a new one in the box I drove a few days and had no change in mileage or performance.
It did cause a MAF failure due to the filter oil, factory installed.
That was a $187 expense above the $24 for the filter itself.
Currently running a OEM filer.
so would u say i should really stick with genuine toyota parts then?
will the K&N filter really let that much crap into the engine that it will screw things up?
thanx
#9
Lexus Test Driver
I've been running one for about a year (~18,000 miles) and have never had a problem, never had MAF issues although they are common. I wouldn't be able to tell you about performance increase or not, since even if there was it would most likely be negligible, however I've noticed slightly better gas mileage for both city and highway since I've switched to K&N.
Import Tuner did a test on OEM paper vs. K&N and they found that K&N traps about 96% of the dirt that an OEM does while allowing higher flow rates, and over a period of time all the dirt allowed in was so minor that it was well worth the purchase of a K&N. The fact that you never have to replace the filter is another plus.
-Tc
Import Tuner did a test on OEM paper vs. K&N and they found that K&N traps about 96% of the dirt that an OEM does while allowing higher flow rates, and over a period of time all the dirt allowed in was so minor that it was well worth the purchase of a K&N. The fact that you never have to replace the filter is another plus.
-Tc
#11
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Well performance wise, they probably give a small negliable amount. Because if they do give 3-4hp, I'd think Lexus would use a filter like that to increase their advertised hp.
Well I'm not completely against K&N, since I purposely went looking for one for my Camry, but in my RX330, I feel better with the OEM Lexus ones, even if their made by Denso.
Here's a comparison of air filters, including K&N:
http://bobistheoilguy.com/airfilter/airtest3.htm
Well I'm not completely against K&N, since I purposely went looking for one for my Camry, but in my RX330, I feel better with the OEM Lexus ones, even if their made by Denso.
Here's a comparison of air filters, including K&N:
http://bobistheoilguy.com/airfilter/airtest3.htm
#13
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i bought mine cause i think it might give a little performance, and have heard theyre better. but now that i think of it, id rather just buy fram for 1/3 of the price and throw it out when im done, get a new one, and that way i dont have to worry about cleanin it.
#14
Lexus Test Driver
-tc
#15
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i just added a poll option
but im not convinced if i should get K&N and risk dirt getting negligible benefits isnt encouraging either
hmm...
but im not convinced if i should get K&N and risk dirt getting negligible benefits isnt encouraging either
hmm...