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You certainly get excited over anyone who isn't on your side on this K&N issue don't you?
Where did you get THIS:
Quote: "The K&N filter "can" technically produce more power under certain conditions, and the manufacturer knows full well what those conditions are, and that's what they refer to for their claims."
Simply pure BS. NO filter can PRODUCE ANY power, NOR can ANY oil additive or type of oil, spark plugs and other devices that aren't designed to somehow "add power". Reduce restrictions or reduce friction, yes. A spark plug is just that, a spark plug and nothing more.
The K&N air filter is less restrictive than some other types of air filters BUT can't add anything in itself. It'll never be any better than simply not using any air filter.
See, I still have my K&N filters and I don't feel that I was ripped off as I didn't expect any performance increase. I also won't argue with you that an OEM paper filter is still the safest filter to use for most people and I'm sure than an OEM filter does a better job at filtering.
As another person above asked, I'll also bet that you can't prove where ONE engines life was shortened by using a (well maintained) K&N air filter. To actually prove that, one would need two identical cars, both driven and maintained equally for.....say 200K miles. Then dissassemble both engines completely and measure things like piston to wall clearances, where most abnormal wear might occur from using the K&N air filter.
Can YOU do that? If not, enough already. You won't stop K&N from selling more filters by doing this and I'll also bet that most Volvo owners don't buy them anyway.
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