Air filter....
11 May 2003, 07:23 PM
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No. The K&N filters are very lightly oiled and are not known for reducing MAF sensor service life. It's the very gunky ITG one that's got a bit of a reputation for doing this.
The K&N filters are excellent replacements, as is the Green. TSL sell a Subaru specific "blue" Green filter which is supposed to be a fraction better than the generic one.
[Edited by greasemonkey - 11/5/2003 7:24:10 PM]
The K&N filters are excellent replacements, as is the Green. TSL sell a Subaru specific "blue" Green filter which is supposed to be a fraction better than the generic one.
[Edited by greasemonkey - 11/5/2003 7:24:10 PM]
05 November 2003, 08:08 PM
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And the other question is, will it make any difference? I know they do in a normally aspirated car, but for a turbo? FYI, the cat is a completely standard MY03 WRX (a Joe Numpty mobile! - at least until I can aford a PPP).
06 November 2003, 03:41 PM
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We have never managed to reliably measure any power increase with any replacement filter when compared to a new std paper element. And we don't want to see anything but the std filter fitted with a performance package.......
Mike
Mike
06 November 2003, 06:23 PM
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Mike - the word "new" stuck out to me in your reply. Is there anything behind that, or am I just a cynic? I was wondering if the paper filter's performance tails off more wuickly than a replacement such as the Green?
Cheers.
Cheers.
06 November 2003, 07:39 PM
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My understanding was also that the K&N filters suffered less from air-flow reduction vs. contamination when compared to a paper filter. Also, what do you mean by:
?
And we don't want to see anything but the std filter fitted with a performance package.......
10 November 2003, 08:59 AM
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Mungo
Some of the tests by replacement filter suppliers have shown that their filter's performance drops off more slowly than the std paper equivalent, which of course it will if it's filtering out smaller particles. Whenever anyone fits a replacement element they are generally comparing the performance after to when it was fitted with a used paper element and they would have normally seen the same performance change by fitting a new std filter.
dr_ming
Warranty!
Regards
Mike
Some of the tests by replacement filter suppliers have shown that their filter's performance drops off more slowly than the std paper equivalent, which of course it will if it's filtering out smaller particles. Whenever anyone fits a replacement element they are generally comparing the performance after to when it was fitted with a used paper element and they would have normally seen the same performance change by fitting a new std filter.
dr_ming
Warranty!
Regards
Mike
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10 November 2003, 03:59 PM
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