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  #13  
Old 12-23-2012, 06:05 PM
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Re: K&N Air filter....is it worth it for my WK 06, 3.7?

I gained 2-3mpg highway with my K&N intake (part#57-1545)
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Old 12-23-2012, 07:04 PM
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Re: K&N Air filter....is it worth it for my WK 06, 3.7?

[QUOTE=soontobesrt;727529]It does what it says. Its high flow and lets more air in so it will net you a few horsepower for sure. /QUOTE]
0 HP gain. These engines are not starving for air.


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Originally Posted by antsjeep View Post
I gained 2-3mpg highway with my K&N intake (part#57-1545)
Not a chance for anywhere near that sort of gain. At most, +0.0.
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Old 12-23-2012, 07:17 PM
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Re: K&N Air filter....is it worth it for my WK 06, 3.7?

Some of the LX folks did some extensive CAI test some years back, they dyno'd without any filter at all and came up with no gains.
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Old 12-23-2012, 09:41 PM
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Re: K&N Air filter....is it worth it for my WK 06, 3.7?

[QUOTE=Milous;728298]
Quote:
Originally Posted by soontobesrt View Post
It does what it says. Its high flow and lets more air in so it will net you a few horsepower for sure. /QUOTE]
0 HP gain. These engines are not starving for air.



Not a chance for anywhere near that sort of gain. At most, +0.0.

WELL..... I guess my evic is lying to me. I'll have to write Jeep Corporate about that. I will update once i get a response.
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Old 12-24-2012, 12:32 AM
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Re: K&N Air filter....is it worth it for my WK 06, 3.7?

Quote:
Originally Posted by antsjeep View Post
WELL..... I guess my evic is lying to me. I'll have to write Jeep Corporate about that. I will update once i get a response.
How are you doing the comparison? Did you replace a brand-new factory filter with a brand new K&N? Drive on the exact same route? Ambient temp exactly the same? Fuel level exactly the same? There are endless parameters that would come into play to make a true comparison, something all but impossible outside of a lab.

Vehicle manufacturers spend untold millions just to gain a fraction of a MPG increase. If simply changing the air filtration system would provide a substantial gain of 2-3 MPG every manufacturer would be all over it.
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Old 12-24-2012, 10:11 AM
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Re: K&N Air filter....is it worth it for my WK 06, 3.7?

Quote:
Originally Posted by Milous View Post
How are you doing the comparison? Did you replace a brand-new factory filter with a brand new K&N? Drive on the exact same route? Ambient temp exactly the same? Fuel level exactly the same? There are endless parameters that would come into play to make a true comparison, something all but impossible outside of a lab.

Vehicle manufacturers spend untold millions just to gain a fraction of a MPG increase. If simply changing the air filtration system would provide a substantial gain of 2-3 MPG every manufacturer would be all over it.
i guess you didnt read my original post... im using K&N intake (part#57-154) NOT a drop in filter.

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