K&N Air filter

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Jun 4, 2018 | 11:07 PM

Laywah17

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From: MN

K&N Air filter

Hey guys the other day I installed the K&N air intake system to my 2014 lexus is250 f sport. I noticed a significant change in MPG. The MPG I'm getting was worse than before, Is there anything I can do to improve my mpg at all ?

Jun 5, 2018 | 06:42 AM

loophole35

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From: Florida

If this is an oil soaked gause filter that it may have contaminated the MAF sensor.

Jun 5, 2018 | 07:12 AM

Rudiculous

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From: SoCal

What's significant? Also, nothing else has changed? Fuel octane, commute, exhaust, etc.

Jun 5, 2018 | 05:22 PM

Larry96815

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From: Hawaii

Quote:

Originally Posted by Rudiculous

What's significant? Also, nothing else has changed? Fuel octane, commute, exhaust, etc.

Heavier foot to hear the new sound?

Jun 6, 2018 | 12:30 PM

gbgary

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From: texas

it didn't affect mine. i have a heavy foot though and drive in sport mode 100% of the time. i've even cut the "charcoal" filter out of my air box. maf is fine.

Oct 18, 2018 | 06:40 PM

zhifan1

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From: Oregon

Thinking of getting the K&N air filter for my IS200T, is there any added benefits at all other than the louder engine note? Thanks..

Oct 18, 2018 | 06:56 PM

Flash5

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From: GA

Quote:

Originally Posted by zhifan1

Thinking of getting the K&N air filter for my IS200T, is there any added benefits at all other than the louder engine note? Thanks..

It won't really help to give a louder engine noise. It will help with greater air flow (less restrictive) and it's reusable so you just clean it and keep using it instead of buying new ones every time like OEM paper filters.

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Oct 18, 2018 | 07:25 PM

Flash5

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From: GA

Quote:

Originally Posted by zhifan1

Great! Less restrictive sounds good, gonna get me one.

Though there’s not really proof that an oiled filter can cake up the MAFS unless over oiled, it’s possible so maybe look into the F Sport reusable filter or AEM dry filter. Just a suggestion.

Oct 19, 2018 | 12:44 PM

#10

E46CT

Lexus Test Driver

Joined: Mar 2016

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Buy my F Sport filter for sale. PM me. it's cleaned and ready to go.

I would not go K&N. Too much complications/hassle with the oiling. not worth it.