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Old 08-19-2012, 08:58 PM   #1
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What aftermarket air breather???

I bought a TJ a few weeks ago after driving Cherokees for nearly 20 years. A colleague is a gear head and has a 2000 TJ, so he immediately came over to look mine over. When we popped the hood, he pointed out that gas mileage and performance would improve with an aftermarket breather system like a K&N. I was looking at the K&N on a few online sources, as I was familiar with them from my road bike days. However another Jeep friend told me that an offroad magazine rated K&N pretty low and others superior. Opinions from those who have used specific models/brands would be very welcome.

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Old 08-19-2012, 09:04 PM   #2
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Not needed on TJ's, in fact they allow a lot of dirt to get into the engine and cause premature wear. Do a search and read on. They do help Mpg and performance on vehicles that have poor air intake systems but TJ's have more than sufficient air flow.

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Old 08-19-2012, 09:29 PM   #3
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The only benefit for K&N is the rinse and reuse feature. What other filters for the Jeep offer this feature so I can stop using the dirt mister.
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Old 08-19-2012, 09:31 PM   #4
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Old 08-19-2012, 09:52 PM   #5
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Old 08-19-2012, 10:12 PM   #6
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Not a cai, just the filter. I know several are out there and one is mopar brand. Which one is preferred? That's it, thanks.
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Old 08-20-2012, 07:27 AM   #7
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Thanks for the feedback. You may have saved me $250 on something that looks cool, but has a negative longrange effect on my engine due to dust contamination. I heard the AEM was better than the K&N, but not much from this thread info.......
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Old 08-20-2012, 08:46 AM   #8
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Quote:
Originally Posted by Tdog02 View Post
Not a cai, just the filter. I know several are out there and one is mopar brand. Which one is preferred? That's it, thanks.
You won't need anything aside from the stock paper filter. A K&N style filter won't give you anything but a lighter wallet and a placebo effect of "performance". A "high performance" sound package if you will...it'll sound like it's got high performance.

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