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Unread 07-12-2012, 12:06 PM   #1
fiveohwblow
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Join Date: Jul 2012
Location: Vancouver, WA
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K&N Intake

How many of you guys are running the K&N intake on your 4.0 jeeps?

This is the one I am referencing..

http://www.knfilters.com/search/prod...x?prod=57-1526



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Unread 07-12-2012, 01:50 PM   #2
IslandTJ
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1998 TJ Wrangler 
 
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Location: where I wheel: N 45║ 36.663' W 123║ 20.935', Oregon
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If you don't need the real estate (e.g. for a York compressor) gained from removing the stock airbox, I wouldn't bother with the K&N.
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1998 TJ Moss [COLOR=darkgreen][B][SIZE=3]Green[/SIZE][/B][/COLOR] Sahara w/ numerous scratches & dents whose playground is on a tropical island that's 33 miles long and 4-12 miles wide, in year-round 82 degree weather.

[Edit] "Now jeepin in Oregon" [/Edit]
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Unread 07-13-2012, 12:33 PM   #3
141
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I've got the AFE and it didn't make any noticable power difference. If you don't mind cleaning your filters it can save you a few bucks over replacing them all the time.
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2012 Rubicon JKUR: 4" Tera Flex Long Arm, Fox 2.0 Shocks w/resi, Fox Stabi, Yukon 5:13's, Evo C gussets, Evo Magnum Sleeves, Evo Rockstars, LOD Stubby Bumper, Poison Spyder Rock Brawler Rear Bumper/Carrier,Poison Spyder Sliders, Poison Spyder EVAP Skid, KMC Strikes on 37" Nitto Trail Grapplers
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Unread 07-18-2012, 10:49 PM   #4
fiveohwblow
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Thanks for the replies guys!

141 did you notice a difference in fuel economy?
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Unread 07-19-2012, 11:34 AM   #5
141
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1997 TJ Wrangler 
 
Join Date: Jan 2011
Location: Portland, Oregon
Posts: 326
Not that I can tell. I put on some Gibson exaust at the same time. Don't think that really made much difference either, at least not enough to "feel". If you put it on a dyno I bet you might see a couple ponies with those mods together. But from what I can tell, it just sounds a little deeper for the most part. If you want more power or better milage, proper gearing is the way to go. Stay away from throttle body spacers and chips too....they are a waste of money on the 4.0 liter.
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2012 Rubicon JKUR: 4" Tera Flex Long Arm, Fox 2.0 Shocks w/resi, Fox Stabi, Yukon 5:13's, Evo C gussets, Evo Magnum Sleeves, Evo Rockstars, LOD Stubby Bumper, Poison Spyder Rock Brawler Rear Bumper/Carrier,Poison Spyder Sliders, Poison Spyder EVAP Skid, KMC Strikes on 37" Nitto Trail Grapplers
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Unread 07-19-2012, 02:40 PM   #6
IslandTJ
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1998 TJ Wrangler 
 
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Location: where I wheel: N 45║ 36.663' W 123║ 20.935', Oregon
Posts: 3,385
Quote:
Originally Posted by 141 View Post
If you want more power or better milage, proper gearing is the way to go.
This.
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1998 TJ Moss [COLOR=darkgreen][B][SIZE=3]Green[/SIZE][/B][/COLOR] Sahara w/ numerous scratches & dents whose playground is on a tropical island that's 33 miles long and 4-12 miles wide, in year-round 82 degree weather.

[Edit] "Now jeepin in Oregon" [/Edit]
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