04-02-2017, 09:14 AM | #2 |
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I replaced mine last September with the aFe pro dry, but I never tried K&N, so I can't compare. I think they're very similar though, and will offer similar benefits.
FWIW, I noticed an immediate difference in throttle response, as the accelerator felt a bit more twitchy, but in a good, always-ready-to-roll kind of way. Definitely felt less laggy, but I'm sure it was mostly placebo. :shrug: It replaced the OE filter: http://f30.bimmerpost.com/forums/sho....php?t=1305472
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04-02-2017, 10:10 AM | #3 |
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both of them offer the slightest gains in performance, barely noticeable increase at the expense of less dirt filtration into your engine. I would personally stick to OEM.
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04-03-2017, 11:02 AM | #5 |
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04-03-2017, 11:59 AM | #6 | |
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04-03-2017, 05:46 PM | #7 |
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K&N is what I went with. Had a BMS intake but it was giving a rough idle and throwing MAF codes. Didn't want to spend $100 on an air filter and know K&N is a reputable brand. I think it has performed just as good as my BMS intake, and have nothing to complain about for the price! IMO you don't have to worry about particles getting in your engine from an air filter with more airflow, it's still a very fine filter, just not as thick.
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04-03-2017, 06:04 PM | #8 |
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http://f30.bimmerpost.com/forums/sho....php?t=1016296
i'd prolly venture and try this if i were going drop-in. i prefer foam to gauze type high flow |
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04-04-2017, 05:00 AM | #9 | |
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I'm 99% certain my Subaru now has a dusted engine. I'd never put K&N on my F31.
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04-04-2017, 04:10 PM | #10 |
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Both will do exactly the same thing, i would get K&N since it is cheaper
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04-04-2017, 07:47 PM | #11 |
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Thanks. I did notice the price difference and the K&N is looking more attractive. I was concerned about the increased air flow and dust getting through. However, since I'm in Florida I don't think I will have to worry about that issue.
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04-06-2017, 03:14 AM | #13 |
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I actually bought a K&N filter but returned it before opening it because of reading a few threads about the oil residue it leaves, even brand new out of the box, not when over re-oiling it for maintenance. That made me reconsider.
Ended up buying the afe pro dry drop in. Very happy with it. Noticeable difference in intake sound and more improved throttle response. But pricey. In Canada, turns out to be almost double what the K&N costs. |
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04-06-2017, 06:18 AM | #14 | |
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04-09-2017, 08:25 AM | #15 |
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Did you get it? i'm tempted, I had it in my Subaru, noticed very little turbo spool noise. So, not sure if the $77 are worth it for just a little bit of turbo noise.
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04-09-2017, 01:27 PM | #16 | |
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https://www.amazon.com/dp/B007V2VX06..._vZN6ybJZ5J2HX |
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04-18-2017, 12:53 PM | #17 |
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I've used K&N filters for many years and pretty much all my cars. Performance is negligible. It's really the simple matter of cost.
Cars never had any issues. Let dry the filter for a few days prior to installing it. Don't go nuts in oiling it during routine maintenance. I clean MAF annually anyways and never notice any oil gunk. |
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04-18-2017, 01:14 PM | #18 | |
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Cleaning the sensor is something I want to do soon. What compound do you use to clean the sensor? |
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04-27-2017, 09:34 AM | #19 |
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Honestly I would just save and go with an intake man. I got the injen intake and it actually makes a difference. Drop ins are a waste of money imo unless you just don't want to keep buying filters.
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