K&N air filter - Mazda CX3 Forum
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post #1 of 18 Old 08-14-2016, 02:47 PM Thread Starter
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K&N air filter

Installed the finally released K&N air filter in my CX3 this past week. I've always had good success with these filters in previous cars. Typically notice better, crisper throttle response, and modest increase in mileage. So far, I'm noticing the same gains. Mid-range seems a bit stronger as well. I've picked up 2/10 of a mile per gallon so far. I also like the fact that they are washable/re-usable.
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post #2 of 18 Old 08-14-2016, 04:45 PM
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I've tried them in the past but couldn't get on with the sound of an F16 jet following me around ;-)

Currently CX5 SportNav 2.2 diesel automatic and AWD.
Formerly CX3 SportNav 1.5 diesel automatic and AWD.

All advice is given in good spirit and taken entirely at the readers own risk. WORK SAFELY. ©2018 anchorman

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post #3 of 18 Old 08-15-2016, 12:31 AM
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Do you have a part number for us??

2016 CX3
2003 B3000
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post #4 of 18 Old 08-15-2016, 12:40 AM
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post #5 of 18 Old 08-15-2016, 12:42 AM
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Ok thx
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2016 CX3
2003 B3000
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post #6 of 18 Old 08-15-2016, 12:43 AM
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OMG a Billet Oil filter, a must have lol

SS-1008 - K&N Performance Products, Oil Filter; Billet direct from K&N

http://www.knfilters.ca/search/appse...-3&engine=2.0L

2016 CX3
2003 B3000

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post #7 of 18 Old 08-15-2016, 01:24 PM Thread Starter
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As above, the following is the part #. Fits great. Takes about 2 whole minutes to swap out.

33-5042
Replacement Air Filter
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post #8 of 18 Old 08-18-2016, 05:51 AM
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I ordered one too and it should be delivered this weekend.

Any tips to swap the filter without doing the pipe ring clamp? Thanks!
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Mazda CX-3 2.0 Skyactiv - G156
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post #9 of 18 Old 08-19-2016, 01:46 PM Thread Starter
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I ordered one too and it should be delivered this weekend.

Any tips to swap the filter without doing the pipe ring clamp? Thanks!
There is enough slack/flex that you don't need to do anything more than pop the tabs for the cover on the filter box then slip the new filter in.
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post #10 of 18 Old 08-19-2016, 03:10 PM
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I've never been a fan of K&N air filters. In order to let more air through you have reduce the restrictions. You can either increase the surface area (more pores) or increase the pore size. Since there's a finite amount of space to pack more pleats, they have to increase pore size. This lets more dirt through.

Also, the washable lifetime filters are more prone to user error. Oil them too much when cleaning and you can end up fouling the MAF.

K&N Air Filter Review - Debunking the Myths (and why OEM is better)

Air Filtration Test
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