Installed a K&N Filter, replacing the stock filter..... - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 8 Old 01-10-2012, 10:12 AM Thread Starter
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Installed a K&N Filter, replacing the stock filter.....

after two weeks i have the results....

between .6-.8 LESS MPG, the stock one was dirty so i installed a new K&N filter and i am getting less performance from it. Stock is better.

WTF

2008 Jeep Wrangler Unlimited Sahara Black 6 Speed Manual

3.5" Rubicon Express Super Flex Lift Kit, 35" Nitto Mud Grapplers on 18" Black Ballistic Jesters, Fab Fours Rear Bumper w/Tire Carrier, Rugged Ridge XHD Front Bumper Winch Mount w/Stinger Hoop and End Caps, 8,000lb Winch

Note to self: Rotate tires at 58,500 Miles.
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post #2 of 8 Old 01-10-2012, 10:28 AM
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Don't worry. Your gas mileage will get better over time.
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post #3 of 8 Old 01-10-2012, 11:20 AM Thread Starter
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Quote:
Originally Posted by ROGUE ALPHA View Post
Don't worry. Your gas mileage will get better over time.
stock > K&N.... words you write make no sense

2008 Jeep Wrangler Unlimited Sahara Black 6 Speed Manual

3.5" Rubicon Express Super Flex Lift Kit, 35" Nitto Mud Grapplers on 18" Black Ballistic Jesters, Fab Fours Rear Bumper w/Tire Carrier, Rugged Ridge XHD Front Bumper Winch Mount w/Stinger Hoop and End Caps, 8,000lb Winch

Note to self: Rotate tires at 58,500 Miles.
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post #4 of 8 Old 01-10-2012, 12:26 PM
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funny, mine picked up .5 MPG or so with a K&N drop in.

Justin
2009 Sahara Unlimited-The Saharacon
Just hanging out in the land of the banned
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post #5 of 8 Old 01-10-2012, 12:51 PM
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Quote:
Originally Posted by Living_Legend View Post
stock > K&N.... words you write make no sense
You'll need this to clean your filter and air flow sensor with:



And you'll need this to clean your injectors out:



I wouldn't say my Acura got such an increase in horsepower as much as it just performed better. Also my gas mileage went up significantly.

However, with my Jeep(s) I prefer to just go with regular paper. That way when I screw it up after sucking in a truckload of mud, swamp water, and pine needles I'd rather just throw the damn thing away.
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post #6 of 8 Old 01-10-2012, 12:57 PM
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Quote:
Originally Posted by ROGUE ALPHA View Post
You'll need this to clean your filter and air flow sensor with:



And you'll need this to clean your injectors out:



I wouldn't say my Acura got such an increase in horsepower as much as it just performed better. Also my gas mileage went up significantly.

However, with my Jeep(s) I prefer to just go with regular paper. That way when I screw it up after sucking in a truckload of mud, swamp water, and pine needles I'd rather just throw the damn thing away.
Chrysler engines are speed density..no mass air flow. Their a little slow.....

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post #7 of 8 Old 01-10-2012, 01:00 PM
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No real change and too much upkeep for my lazy ass. After three cleanings I put a new paper filter in and called it a day.

........My other hobbies include: Older cars and trucks; Spending money on unfinished projects, and continuing to not finish them...

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For my money, the most notable part of this thread is all the fallout from bsack's fortune cookie factory explosion.
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post #8 of 8 Old 01-11-2012, 07:21 AM
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Originally Posted by Wanta44 View Post
Chrysler engines are speed density..no mass air flow. Their a little slow.....

Sent from my SCH-I500 using Tapatalk
Yeah, you're right. You'll have to forgive my advanced thinking. I've owned nothing but foreign sports cars for over 20 years. This is the first Chrysler I've ever owned.

Nevertheless, you can still use the CRC MAF juice to clean a K&N air filter or you can just go to a paint n' body store and get some industry grade acetone. The stuff will clean crude oil from the bottom of the Gulf Stream and not harm a single organism. Best thing about it is it completely evaporates instead of creating problems down the road as with using water.

As far as Jeep JK's are concerned IMO it just makes better sense to get the standard issue air filter especially if you're a serious off-roader. Fram filters are super thick and can stop a small caliber bullet. Those after market intake systems are a complete waste of time and money for any kind of real off-roading.

Last edited by ROGUE ALPHA; 01-11-2012 at 07:28 AM.
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