[Biturbos4] Re: K&N filters bad?

[Ti Kan]

Interestingly, the same thread appears on the main audifans quattro list.

-Ti
2003 A4 1.8T multitronic
2001 S4 biturbo 6-sp
1984 5000S turbo
1980 4000 2.0 5-sp
-- 
 R 1 3 5  Ti Kan
 |_|_|_|  http://www.amb.org/ti
   | | |  Vorsprung durch Technik
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Forwarded message:
> From quattro-bounces at audifans.com  Thu Mar 11 08:28:21 2004
> X-Original-To: quattro at audifans.com
> Delivered-To: quattro at audifans.com
> Message-ID: <004e01c40742$c129e200$0e00a8c0 at bt.net>
> From: "Phil Payne" <quattro at isham-research.com>
> To: <quattro at audifans.com>
> Date: Thu, 11 Mar 2004 09:09:48 +0100
> Subject: Re: K&N filters bad?
> 
> > 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.
> 
> We did a test on one about five years back.  I got two identical lint-free cloths from a photo
> shop - we took an ur-quattro (MB engine) and cleaned the dome over the air mass sensor paddle.
> Then we fitted a new Audi filter and drive 1,000 miles.  Then we wiped out the dome with one
> of the cloths, put in a freshly oiled K&N, and drove another 1,000 miles.  When we wiped out
> the dome with the second cloth we had a clear comparison between their filtering abilities.
> 
> We pitched the K&N over the hedge and put the paper one back in.
> 
> There is a general rule on aftermarket bits - if they really did perform some sort of miracle,
> the manufacturers would fit them as stock.  Especially a part like a renewable air filter,
> since nowhere is the cost pressure greater than on servicing.
> 
> Ask K&N to name _ONE_ engine manufacturer who fits their product as stock.
> 
> -- 
>   Phil Payne
>   http://www.isham-research.com
>   +44 7785 302 803