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3.7L V6 Technical Discussions Any questions about the new engine, transmission, exhaust, tuners/CAI, or gearing can be asked here!

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Old 03-16-2014, 09:07 PM   #1
MCARaceRed2011V6
 
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Default Who has K&N Air Filterr?

Hey guys, so I was just wonder who on here just has a K&N Air Filter installed, and what kind of MPG gains you get? I installed one a couple months ago. Was on the highway on Friday and was averaging 34mpg, and tonight on my way home on the back roads, after hitting the rest button, I eventually got 23.4. Before the K&N filter I would get roughly 21 on the back roads with out getting on it, and 31 on the highway. Also have any of you experienced any cons with this product?
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Old 03-16-2014, 09:15 PM   #2
jthorn9
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K&N filter alone will not do much, its the tune that makes a true difference in the performance and MPG of a car.

MPG itself can vary drastically due to air temperature, humidity, and the millage and condition of the car.
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Old 03-16-2014, 09:37 PM   #3
jz78817
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your air filter doesn't matter. it's way less of a restriction than your throttle body.
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Old 03-17-2014, 06:15 AM   #4
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I put a K&N in the first day I got my car, So I did not notice anything. I ended up taking it out and putting in a CAI and a bunch of other things along with a tune, Once completed I did see better performance and milage. The tune is the key to bring everything together
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Old 03-23-2014, 08:50 PM   #5
MCARaceRed2011V6
 
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I plan to get jlt cai and tune in the future, for now I'm just sticking with the k&n. Really just waiting for my warrant to be up before I start mods.
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Old 03-23-2014, 09:38 PM   #6
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If you're talking about a drop in filter, don't expect anything - that way you won't be disappointed.
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Old 03-30-2014, 01:47 PM   #7
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I have it and have not noticed anything. I really only got it because I only have to clean it once a year or so. Unlike paper, the K&N should still keep the same airflow even when dirty...someone correct me if i am wrong LOL
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Old Today, 11:58 AM   #8
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I tried the JLT cai that didn't require a tune. Although it is a quality product, I had lousy throttle response and hesitation when I punched it. Went back to factory box and KN panel which was ok. I then tried a AFE dry panel filter which has a unique funnel shape that goes deep in the stock box. I also drilled a one inch hole on the bottom right front of box. Results were a seat of the pants difference. Plus my gas mileage went up. I am 68 yrs. on my seventh mustang, just a old school trick that still works.
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Old Today, 11:58 AM
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