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Old 03-13-2008, 04:13 PM   #1
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looking to buy an upgraded intake and air filter

My co-worker and I were looking under the hood of my Jeep and talking about upgrades and he suggested a better intake and air filter. He said I would get more horsepower. Is it worth the money for an upgrade like that?

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Old 03-13-2008, 04:29 PM   #2
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you will not really notice the 3-5 hp that you get more.

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Old 03-13-2008, 04:52 PM   #3
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Originally Posted by Benjammin View Post
My co-worker and I were looking under the hood of my Jeep and talking about upgrades and he suggested a better intake and air filter. He said I would get more horsepower. Is it worth the money for an upgrade like that?
As opposed to come high performance cars like the 5.0L Mustang, Camaro Z-28, Corvette, etc. that have purposely restrictive air intakes, the TJ's air intake is already very free breathing and installing an aftermarket air intake won't help.

And most aftermarket air intakes for the Jeep use the K&N air filter which test show is pretty much at the bottom of the pack where filtration is concerned. It lets in 3X as much dirt (literally, per the tests) as something like an AC-Delco while the engine really doesn't get any more air, again in the TJ's case.

I have to run an aftermarket air intake because the OE air filter's box space is taken up by a belt-driven compressor but I also added two prefilters... a K&N Outerwears and foam Unifilter) on top of the air filter to keep the desert dust and silica out of my engine.

If you don't have to run an aftermarket air intake system, leave the OE intake in place... despite what some who don't know the Wrangler's air intake system may advise.
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Old 03-13-2008, 04:58 PM   #4
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Agree with Jerry 100%

Why not run a Chevy filter box Jerry?

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Old 03-13-2008, 05:23 PM   #5
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Hey that looks great, what kind of Chevy is that out of? I'd LOVE to get a paper element filter back into my TJ!!
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Old 03-13-2008, 05:41 PM   #6
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@scoop:
did you need that filter bo after you installed the compressor?
what kind of intake is that? what´s the price?
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Old 03-13-2008, 05:50 PM   #7
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Thanks Jerry for convincing me not to waste my money. You do know a couple things.
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Old 03-13-2008, 05:57 PM   #8
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I like that setup too including the use of the bars for relay mounts. As for the K&N filters, I ran them for about 3 years then happened to take the intake tube off my XJ and when I pulled my fingers out they were covered in what felt like black sand. Cleaned the tube out and put it back, stuck a paper filter back in, cleaned the K&N planning on changing it the next cycle. Next cycle came, intake tube was clean, put the K&N in, went thru the 3 month cycle and changed it again back to paper, the intake tube coated with that black sandy feeling stuff.
Been running paper filters ever since, oil stays cleaner too. This is the flat panel one. If anyone wants one I have one for $10 plus shipping.
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Old 03-13-2008, 06:30 PM   #9
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Would I need a better intake if I put a new headers and a cat back exhaust on?
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Old 03-13-2008, 06:34 PM   #10
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Originally Posted by Jerry Bransford View Post
Hey that looks great, what kind of Chevy is that out of? I'd LOVE to get a paper element filter back into my TJ!!
x's 2?
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Old 03-13-2008, 06:34 PM   #11
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Hey that looks great, what kind of Chevy is that out of? I'd LOVE to get a paper element filter back into my TJ!!
Thanks Jerry. This actual one is out of a early 90's Buick with the 3.8 V6 Buick. But they come in many of the small cars that GM came out with from 88-96. Pontiac, Olds, Buick's, GMC trucks and even John Deere loaders

If you go to the fram site ( http://www.power-21.com/honeywellpower21i/fram.aspx ) and plug in the filter number (CA3916) on the left under quick parts search it will give you all the models it fits. You can then take that list to you local junk yard and grab the one you want. In 20 minutes of searching I had my choice of no less then 5 airbox's. I took the cleanest one and paid the man 8 dollars.

All total I have about 15 bucks into the air system. Here is the write up I went by.


http://www.jeepfreedom.com/html/airbox_replacement.html

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Old 03-13-2008, 06:42 PM   #12
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@scoop:
did you need that filter bo after you installed the compressor?
what kind of intake is that? what´s the price?
I am going to guess you meant Scoob ? HEHEHE J/K Buddy


No I did not need to move the air box for the York compressor. You had to do that for the early year TJ's. But not in the newer ones, like ours. My purpose for moving the box was 2 fold.
#1 to clear out that area it used for another upcoming junkyard mod I am going to do. And i need the spot that air box sat in for it.

#2 eventually I am going to run a hose from the back of that air box to through a hole in the firewall throw a scoop on the Jeep and make it into a true CAI/Ram air system. Like this

http://www.jeepsunlimited.com/forums...d.php?t=740555

And This

http://community.webshots.com/album/...RJbmfB?start=0
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Old 03-13-2008, 07:16 PM   #13
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That's very cool Scoob, I'll look into that asap. Thanks!

Quote:
Originally Posted by Scoob View Post
Thanks Jerry. This actual one is out of a early 90's Buick with the 3.8 V6 Buick. But they come in many of the small cars that GM came out with from 88-96. Pontiac, Olds, Buick's, GMC trucks and even John Deere loaders

If you go to the fram site ( http://www.power-21.com/honeywellpower21i/fram.aspx ) and plug in the filter number (CA3916) on the left under quick parts search it will give you all the models it fits. You can then take that list to you local junk yard and grab the one you want. In 20 minutes of searching I had my choice of no less then 5 airbox's. I took the cleanest one and paid the man 8 dollars.

All total I have about 15 bucks into the air system. Here is the write up I went by.


http://www.jeepfreedom.com/html/airbox_replacement.html

HTH
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Old 03-29-2008, 06:38 AM   #14
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My first after market air intake cost me about $100.00. I pieced it together. I then bought an airforce one intake system. Only difference to my pieced to gether one was the air force one had a bigger intake tube, bigger filter, and heat shield. I can't really see a difference in fuel efficency, or HP gain. Then again, it's not like a jeep is the most fuel efficient vehicle, but we don't drive them for fuel efficiency

2005 kahki 6MT 4.0 L TJ, flow master exhaust, throttle body spacer, airforce one intake, 33 x 10.5 MT tires, 2" spacer lift, 2" body lift.

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