Air Filter Question? - Hyundai Elantra Forum
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post #1 of 7 (permalink) Old 05-17-2014, 04:06 PM Thread Starter
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Air Filter Question?

Hi all. What is the difference between the PZEV and ULEV? I see some Air Filters listed for one or the other. I am thinking about using a K&N. I have used them in the Past.

Also, What is a Good Cabin Air Filter? I am going to be needing that soon as well.

Thanks

Elantramax

2015 Tucson SE AWD PZEV
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2010 Yamaha Majesty
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post #2 of 7 (permalink) Old 05-17-2014, 06:59 PM
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PZEV (Partial-Zero Emissions) and ULEV (Ultra-Low Emissions) are just emission ratings. A PZEV is the more economical choice as it is suppose to be cleaner and better for the environment. The ULEV could provide slightly better performance, but it won't be enough to notice. If your state requires emission testing be sure you get the one that is required. In Oklahoma, we don't have to worry about the emission tests.

I haven't replaced my cabin air filter so I am interested to know as well.
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post #3 of 7 (permalink) Old 05-17-2014, 07:14 PM Thread Starter
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Thanks Stormtrooper. But I should have been more specific. I know the difference between the two models. I was asking, What is the difference between the Air Filters? Some Filters work for Either. Some work for Both. ???

Elantramax

2015 Tucson SE AWD PZEV
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post #4 of 7 (permalink) Old 05-18-2014, 03:42 AM
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I'm pretty sure the ULEV and PZEV filters will be interchangeable. Although the PZEV model of Elantra has two air filters while the ULEV's have only one. If your trying to replace a PZEV the chances are that you will only be able to replace the bottom filter. The bottom filter should be the same fitting on both models just different emission ratings.

I'm guessing the two air filters on the PZEV restricts more airflow causing the performance to decrease slightly and "go green". The top air filter isn't easily removed. Honestly, I don't know if it's replaceable. I use a K&N air filter (bottom) with the top filter removed. Removing the top could void the warranty.
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post #5 of 7 (permalink) Old 05-18-2014, 04:36 AM Thread Starter
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It looks like the standard air filter inside the box. With what appears to be another filter in the housing. At the inlet to the air flow meter

Elantramax

2015 Tucson SE AWD PZEV
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2010 Yamaha Majesty
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post #6 of 7 (permalink) Old 05-28-2014, 03:39 PM Thread Starter
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I got the Wix Filter (Engine) made in S. Korea. Looks like the Factory unit. Cabin AF(Wix) is made in Poland. Haven't replaced them yet. Do it when I hit 20k.

Elantramax

2015 Tucson SE AWD PZEV
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2010 Yamaha Majesty
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post #7 of 7 (permalink) Old 09-27-2014, 09:12 PM
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Garage
I use a K&N 33-2451 from my 2013 Coupe. So far works very well.
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