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Old 05-22-2013, 12:41 PM   #1
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Air filter question

I was looking to upgrade my stock air filter in my 2009 Jeep Wrangler unlimited. I of course like many others would like more horsepower and better fuel economy. I was also looking to minimize the amount of space for the air filter. I hate how the current one takes up so much room. Are there any suggestions for inexpensive ones that will do this trick?

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Old 05-22-2013, 12:45 PM   #2
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An air filter alone will not get you any added benefits. It will not get you more HP or MPG. Often times replacements (from stock) let more dirt and debris (more importantly silica) into the engine (which is bad). As for taking up less room, this should not be a concern unless you are trying to mount an acc. block or solenoid bock for a winch in there and even with those it is still enough room. As for cost of a CAI you are looking at around 200-300 dollars for no added benefits. You are better off saving the money and purchasing useful mods.

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Old 05-22-2013, 12:54 PM   #3
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An air filter alone will not get you any added benefits. It will not get you more HP or MPG. Often times replacements (from stock) let more dirt and debris (more importantly silica) into the engine (which is bad). As for taking up less room, this should not be a concern unless you are trying to mount an acc. block or solenoid bock for a winch in there and even with those it is still enough room. As for cost of a CAI you are looking at around 200-300 dollars for no added benefits. You are better off saving the money and purchasing useful mods.
Bang on! IMHO.
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Old 05-22-2013, 01:09 PM   #4
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An air filter alone will not get you any added benefits. It will not get you more HP or MPG. Often times replacements (from stock) let more dirt and debris (more importantly silica) into the engine (which is bad). As for taking up less room, this should not be a concern unless you are trying to mount an acc. block or solenoid bock for a winch in there and even with those it is still enough room. As for cost of a CAI you are looking at around 200-300 dollars for no added benefits. You are better off saving the money and purchasing useful mods.
X3,
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Old 05-22-2013, 01:22 PM   #5
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Yeah, we old guys have long ago learned that all that snake oil hype about increased HP or better MPG without major re-engineering of the whole engine are just a sucker play. Not because we're so smart, but because we've been there and learned the hard way!
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Old 05-22-2013, 01:54 PM   #6
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I was looking to upgrade my stock air filter in my 2009 Jeep Wrangler unlimited. I of course like many others would like more horsepower and better fuel economy. I was also looking to minimize the amount of space for the air filter. I hate how the current one takes up so much room. Are there any suggestions for inexpensive ones that will do this trick?
There was another air filter thread this week that ) touched on this topic: http://www.wranglerforum.com/f33/air...ut-243815.html
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Old 05-22-2013, 03:19 PM   #7
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There was another air filter thread this week that ) touched on this topic: http://www.wranglerforum.com/f33/air...ut-243815.html
Unfortunately, there are 3-4 threads about air filters, gearing, and dropped pitman arms a week. It is fine with me because it gives me something to do when I am bored out of my mind at work!
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Old 05-22-2013, 03:40 PM   #8
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Save your money for something that you will get some use out of .
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Old 05-23-2013, 10:58 AM   #9
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So what would work to give me more horsepower because people have told me when they install a different air filter that they get more of a pick up with their engine. I know these questions sound stupid. Just curious of why people would bother buying these type of products then. THanks for all the help
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Old 05-23-2013, 11:38 AM   #10
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So what would work to give me more horsepower because people have told me when they install a different air filter that they get more of a pick up with their engine. I know these questions sound stupid. Just curious of why people would bother buying these type of products then. THanks for all the help
There's really no way to gain any noticeable amount of power by replacing just the air filter, and the "high performance" (i.e., lower restriction) filters are less efficient (i.e., let more dust through) - not what you want in an off-road vehicle. You might see a slight performance gain with a cold air intake and high flow exhaust, but even those claims are dubious. Most of these add-ons are just snake oil, honestly.

Have you considered dropping a V8 in it?
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Old 05-23-2013, 11:43 AM   #11
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No but the Frame air filter is kind of expensive - Like 20.00 for the KN is like 3-4 replacements worth....
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Old 05-23-2013, 11:53 AM   #12
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Because some people are gullible....
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Old 05-23-2013, 11:55 AM   #13
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Because some people are gullible....
touche
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Old 05-23-2013, 11:57 AM   #14
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So what would work to give me more horsepower because people have told me when they install a different air filter that they get more of a pick up with their engine. I know these questions sound stupid. Just curious of why people would bother buying these type of products then. THanks for all the help

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Old 05-23-2013, 12:00 PM   #15
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Because some people are gullible....
Yup. It isn't an across the board successful modification. Many people don't realize that. The effects of cold air intakes and high flow filters are strictly application specific. Just because one will unlock about 30hp on a supercharged mustang cobra and 17hp on a corvette, people think they will do wonders on their Jeeps, accords, camry's etc. It's just not true. The manufacturers of these products will surely still take your money though!
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Old 05-23-2013, 12:31 PM   #16
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So what would work to give me more horsepower because people have told me when they install a different air filter that they get more of a pick up with their engine. I know these questions sound stupid. Just curious of why people would bother buying these type of products then. THanks for all the help
It's a 'butt dyno' thing. It might feel faster, but thats because for $300 you want it to feel faster. Unless you're driving a track car with a ram air feeding through the front fairing or something, you're not gonna get any real gains out of a CAI.

On the other hand, I personally run one because a) it sounds cool with my exhaust, and b) I don't do deep water crossings that would worry me about sucking up water.
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Old 05-23-2013, 12:33 PM   #17
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It's a 'butt dyno' thing. It might feel faster, but thats because for $300 you want it to feel faster. Unless you're driving a track car with a ram air feeding through the front fairing or something, you're not gonna get any real gains out of a CAI.

On the other hand, I personally run one because a) it sounds cool with my exhaust, and b) I don't do deep water crossings that would worry me about sucking up water.
It's called the placebo effect.
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Old 05-23-2013, 12:38 PM   #18
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I will give you that for sure, especially on the 3.6 they sound really cool. Gives the engine an entirely different note. I'm not against them, just want people to know what to expect(or not) when buying them.
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Old 05-23-2013, 08:04 PM   #19
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I was looking to upgrade my stock air filter in my 2009 Jeep Wrangler unlimited. I of course like many others would like more horsepower and better fuel economy. I was also looking to minimize the amount of space for the air filter. I hate how the current one takes up so much room. Are there any suggestions for inexpensive ones that will do this trick?
You'll not get better mileage.
You'll not get better HP.
You will get more noise.
And, what would you do with the extra space under the hood? I've never looked under the hood and wished for more space. Just asking.
What trick are you trying to perform?
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Old 05-23-2013, 09:59 PM   #20
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Everyone talking about different engine sound is referring to a cold air intake, not a k&n cotton drop in filter, right?
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Old 05-23-2013, 10:02 PM   #21
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I was looking to upgrade my stock air filter in my 2009 Jeep Wrangler unlimited. I of course like many others would like more horsepower and better fuel economy. I was also looking to minimize the amount of space for the air filter. I hate how the current one takes up so much room. Are there any suggestions for inexpensive ones that will do this trick?
I just put a K&N cool air intake on my 2010 jeep and went through a mud hole and didn't make it because it sucked up water.. I took it in and they said I needed a whole new engine. So if you are thinking about offroad it won't be the best decision.
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Old 05-23-2013, 11:25 PM   #22
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I just put a K&N cool air intake on my 2010 jeep and went through a mud hole and didn't make it because it sucked up water.. I took it in and they said I needed a whole new engine. So if you are thinking about offroad it won't be the best decision.
My condolences. A noble death!
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Old 05-24-2013, 12:34 AM   #23
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I just put a K&N cool air intake on my 2010 jeep and went through a mud hole and didn't make it because it sucked up water.. I took it in and they said I needed a whole new engine. So if you are thinking about offroad it won't be the best decision.
Could have told you that would happen.

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