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Discussion Starter · #1 ·
Had a friend tell me this (performance) air filter should be covered to reduce dust catch. I just ordered a new universal K&N replacement. If I keep the new filter washed occasionally, is this setup a problem? Too I've seen some websites that suggest an engine heat blocker shield...
 

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Yea that's a problem. Get a stock air box. All you are doing is sucking up a lot of heat and dust.
 

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You will find that the large majority of people on this forum feel the same as Neil.
 

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I would put a stock box back on. You're not going to gain much one or two HP from using that and it's certainly not as efficient in filtering out dirt than a stock box.

I've got mine for sale if you'd like.

Also, what's with the wire loom on stuff?
 

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Discussion Starter · #5 ·
I would put a stock box back on. You're not going to gain much one or two HP from using that and it's certainly not as efficient in filtering out dirt than a stock box. I've got mine for sale if you'd like. Also, what's with the wire loom on stuff?
That's a shoe string holding the filter up. You can shoot me a PM about the standard setup if you'd like.
 

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That air filter has been shown to be the absolute air filter for actually filtering the air without giving any performance boost to the TJ despite the hype by K&N. YES a K&N can help improve the performance in vehicles with restrictive air intakes but the TJ's air intake is completely non-restrictive so a K&N doesn't help even 1%. What it does do better is let in more harmful fine dust/silica/dirt particulates.

I would revert it back to the stock air intake box with a good paper element air filter like made by AC-Delco, Purolator, Fram, etc.
 

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The blue/purple wire loom is what I was asking you about. It's on your hoses for your a/c, breather on the valve cover, and your vacuum hose going to your brake booster.
 
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