Anyone have experieince with these "washable" air filters? Are they worth the initial cost? Do they clean up after a few years of use? Thanks
RE Thanks, I miss the old software, and the resources also. Whoever bought this new setup, in my opinion messed up. I wasn't looking for performance in horsepower but quality and longevity. I don't mind spending a few extra bucks on a part if its a quality product that lasts and performs better than its predecessor. Thanks
I regretted using one After 1 month of install, needed to replace MAF (Mass Air Flow sensor) costed me $300. I have used K&N for E90 if someone wants it - $15 shipped in US! Looks something like this: http://www.race-mart.com/KN_Filters-KNE-33-2332.html
Yes - no maf sensor wires on Yes - no maf sensor wires on the 80's-era bimmers to get gummed up from air-filter oil. Didn't seem to be an issue with the older barn-door air-flow meters.
Age old question, although we Age old question, although we don't have our old posts to refer to here on these new forums. I think the opinion spectrum runs the gamut - some will argue passionately that they're less than pointless, and you'll also find fans. Speaking for myself, I haven't experienced any downsides using a K&N with my E30, but no remarkable upside either. They clean up fine, but should be cleaned at least once a year. I'd be skeptical of particular horsepower claims - I doubt one can tell much difference if they get a 2hp bump by any means. As far as particular performance/hp gains, that would only go as far as your car's engine tuning is capable of exploiting an airflow increase. The stock tuning may have a bit of headroom that could show a hp increase on a dyno, but you probably would be unlikely to feel it much sitting in the car seat. Some have mentioned an increase in intake noise.
I heard the same about K&N that it messes up the MAF so it was suggested to me not to use one because of that...So I will not...but I will say that they do work fine in other vehicles that I have had as they do clean up well..
K&N don't filter as well, and putting an oiled element in an engine's intake path is not the wisest thing to do. Use OEM and annual/12K mile changes.
