10-12-2019, 08:38 PM | #1 |
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2020 has different sized air filter!
I wrecked my X3 last spring. Finally picked up new 2020 X3 M40i. I had salvaged my K&N Air Filter from totaled car (only used 3 months). I went to install K&N and found it didn't fit! It's slightly too large - both longer, wider and deeper!
I still have factory filter from 2019 X3 M40i. Enclosing some pics comparing 2019 vs 2020 vs K&N. I will be looking for a solution. I have used K&N for years. I prefer the oil soaked cloth to the dry paper. I also prefer the drop in filters as they retain the cold air intake system. Anyone have certain knowledge on a K&N air filter that fits?
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Last edited by sinbad4; 10-12-2019 at 08:48 PM.. |
10-13-2019, 08:57 AM | #4 |
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10-13-2019, 03:52 PM | #5 | |
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https://www.knfilters.com/air-filter...ent-air-filter From your link:
From link to 2018/19 X3 M40i
I think j1980mac is correct, we'll be stuck waiting some months.
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10-13-2019, 07:38 PM | #6 |
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really don't know what's the point of change the size of filter just a bit like this. wouldn't it easier for everyone that all G01 use same filter??
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10-13-2019, 08:51 PM | #7 |
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Well the car is a G01 but the 2020 have a completely new engine so it only makes sense that the engine components may be different.
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10-14-2019, 02:12 AM | #8 |
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10-14-2019, 12:55 PM | #9 | |
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Quote:
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10-14-2019, 06:27 PM | #11 |
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I don't mean to start a war here, but is there any scientific evidence that a non-OEM filter actually makes a difference for the M40i? I have heard a lot of general claims (including manufacturer claims), but have not seen any compelling evidence that the filter makes a difference on the M40i. I would be very much interested to learn because if it makes a difference, I'd change the filter on mine.
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10-14-2019, 09:44 PM | #12 | |
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Check out Engineering Explained: He does a reasonable test. His testing results, K&N 2.5% to 3.5% faster. Which, in the M40i, translates to something like 10-15HP at the crank. Bottom line, you will be hard pressed to notice a 3% power bump. Really, it works nice with other small items. Updated down pipe, intake, exhaust. All together, it is noticeable. In the case of BMW M (and M40i cousins), they do pretty good job with intake and exhaust. I don't know how much return you'd get replacing them. I know some are enjoying new DP - not sure how much of that is performance and how much is nice sound.
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11-22-2019, 12:08 PM | #14 |
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Not yet. :-(
Was hoping someone finds one soon. I am guessing we'll have to wait a few more months.
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01-13-2020, 07:46 PM | #15 |
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Found one that fits! See: https://x3.xbimmers.com/forums/showt...3#post25679543
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01-13-2020, 09:01 PM | #16 |
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I guess no one here feels that major manufacturers would use oiled gauze filters to gain "free" horsepower,torque and miles per gallon if they worked ?
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01-13-2020, 09:36 PM | #17 | |
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They cost more. How much do you think it would cost them to make exhaust 1/2 bigger? Injectors a little bigger, etc, etc. Few bucks here, few bucks there.. x a million. Plus, specifically for air filters; they have to engineer for worst possible conditions. Off-road, lots of dust environments. I drive in the city and highway and average 10 miles dirt road a year. I've used cloth, oil screen K&N since the early 90's. I do most of my own engine, brakes, maintenance - I have yet to see any dust, dirt or residue make it past one. Aside from some extra power and efficiency; you get a little more turbo whine and blow off; not as much as the open cone solutions; but then the drop in has cold air draw and stock appearance. But to each his own.
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