K&N filters bad?

Chris Semple chris at force5auto.com
Wed Mar 10 22:06:23 EST 2004

> -----Original Message-----
> From: quattro-bounces at audifans.com
> [mailto:quattro-bounces at audifans.com]On Behalf Of FFGREG32 at aol.com

> I have been informed that K&N filters are bad for my car. I
> would like to see
> the data on this before I install this filter in my car. I
> will stay with
> factory filters if the data indicates that K&N filters could
> allow damage. I had
> never heard any of this before. If anyone could point me to
> any technical data
> or past discussions where this is indicated, I will be open
> to learning about
> it. If this is true that it causes damage to our Audis, then
> K&N needs to be
> upfront about it, or at least hear from those whose cars have
> been damaged.
> Anyone else have input on K&N? Thanks Greg
> 1989 200TQ

Just a datapoint, but I've replaced MAF's on both '91 200tq 20v's and S4's
that have had oil contamination failures, and K&N filters installed.
Wouldn't run one myself, unless I was out for that last 1% and was willing
to babysit it a bit. Of course, for that last 1% I've put up with
noisy/stiff/expensive stuff before. That said, your car doesn't have a MAF
sensor, and I've never seen any CIS related issues with K&N's. Try one if
you like, but don't expect any measureable performance gains from it on an
otherwise stock car.

Chris Semple
Concord NH
'92 S4
   '97 E350 Club, in progress
      '94 Dodge 3500 Dually(loaner)

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