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DURATEC Performance (2003-2007) The place to chat about any Duratec 23, 23E, and 20 engine performance, tuning and exhaust related upgrades.

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View Poll Results: Can you Change out your 05 ZX4 factory air filter
Can you Change out factory air filter by it's self. 0 0%
If you can How do you do it. 0 0%
Can you put a K&N filter in 0 0%
Multiple Choice Poll. Voters: 0. You may not vote on this poll

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Old 06-07-2005, 06:44 PM   #1
Tburgis
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Post Air Intake

I was wondering if it is possible if you can put a K&N Air filter into the factor 05 focus ZX4 air filter box that is on the bottom of the car and if you can how do you do it. Basically how do you change the air filter if you can.


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Old 06-07-2005, 09:28 PM   #2
aero_student
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No, the factory filter is not serviceble.

You need to get an aftermarket intake. I've had a MarcyMotorsport intake for 2 years now and I've been very ahppy with it and the results.
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Old 06-08-2005, 12:28 AM   #3
Lil PZEV
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^^^Just like Aero said... the air filter in Duratecs is a "Lifetime" part.

CAIs are a phenomenal mod for these engines though, quite a kick in butt-dyno (and the real ones!). I have an FC intake, they don't make it anymore, but it's similr in design to the Marcy, I love it.

Also, FYI, K&N makes an intake for the Duratec... but it's not just a drop-in filter, you pull out the stock pieces and install the whole K&N tubing and filter.
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Old 06-08-2005, 01:13 PM   #4
xxcarlo27xx
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I have the K&N Typhoone intake, and i think its one of the best intakes out there.
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Old 06-08-2005, 07:26 PM   #5
Axman
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get the FS or Cosworth Intake. i put the FS one in and noticed a big diff
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