It's all a matter of what you're looking for. I wanted to never have to buy an air filter again, if I could avoid it. Like you said, I wasn't interested in any "performance" upgrade. I started using one in my '90 900 (w/MAF) about 9 yrs & 130,000 miles ago. I'm still using that same filter. It's been cleaned twice so far, & does an excellent job at filtering dirt (based on the contamination readings from my Used Oil Analyses). My last cleaning of this K&N was after 90k mi of continuous use.

I also ran a drop-in K&N in my '97 Chevy Cavalier for 3yrs/30k mi, then another one in my '99 9³SE for 8yrs/90k mi (no MAF in that car) with only one cleaning, & now another in my '02 9³SE for the past 1yr/10k mi (w/MAF).

The best thing you can do, if you get one, is to not clean it too often. It's only warranted for a certain number of cleanings (& years of use), & every time you soak it in cleaning solvent you break down the fibers a bit more. Once every 50k mi is definitely more than enough, unless you live/drive in very dusty/sandy conditions. I also recommend keeping your old paper filter for when you clean & oil your K&N. That way you can simply drop in the paper filter & not worry about how long it takes to clean/dry/oil/rest your K&N.

I can honestly say they're one of the few aftermarket products that delivers on its claims. I don't expect to ever buy/use a paper filter again.

posted by 71.212.14...

• What's the deal with K&N Filters?, Wasabi, Sat, 31 Oct 2009 13:05:59
  • 120K mi + on mine, ChuckD , Mon, 2 Nov 2009 19:13:53
  • This pretty much sums it up., B Millar , Mon, 2 Nov 2009 17:40:14
  • I won't do K&N again..., Larry West , Mon, 2 Nov 2009 11:53:24
    • Re: I won't do K&N again... - I never have, oldsaab, Mon, 2 Nov 2009 16:45:37
  • Marketing makes people pay money for nothing, vvk, Mon, 2 Nov 2009 06:51:10
  • I have one for my 9000 that I bought several years ago, turrbo , Sun, 1 Nov 2009 14:11:28
  • Unless you are doing numerous other mods to your car, Noel, Sun, 1 Nov 2009 06:36:26
  • Re: What's the deal with K&N Filters?, TG, Sat, 31 Oct 2009 18:14:51
  • Interested in Drop-in Filters, Wasabi, Sat, 31 Oct 2009 14:13:11
    • Drop-ins great for saving money, time & more, Eiron, Sat, 31 Oct 2009 22:06:24 <-- Viewing This Message
    • Yeah, then definitely not worth it., B Millar , Sat, 31 Oct 2009 14:22:12
  • In MY opinion... they are bad news., B Millar , Sat, 31 Oct 2009 13:42:17
    • Re: In MY opinion... they are bad news.??, insidegm, Sat, 31 Oct 2009 13:58:27
      • How do you know?, vvk, Mon, 2 Nov 2009 06:55:55
        • Re: How do you know?, insidegm, Mon, 2 Nov 2009 09:45:32
          • Sure, but what are the advantages?, Noel, Mon, 2 Nov 2009 11:24:55
            • The advantages are spread out over time, Eiron, Mon, 2 Nov 2009 13:38:41
              • Well, I guess., Noel, Mon, 2 Nov 2009 17:32:31
            • Re: Sure, but what are the advantages?, insidegm, Mon, 2 Nov 2009 12:36:27
      • Placebo effect., dmz789abc, Sat, 31 Oct 2009 18:29:54
  • Re: What's the deal with K&N Filters?, BobS, Sat, 31 Oct 2009 13:33:48

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