K N Filter
Getting ready to have an oil/filter change done today. I purchased a KN air filter as well. Should I replace my air filter with a K N. I've been hearing different stories...
What should I do? Fab 00 Boxster tip Blk/Blk clear side markers aluminum door sills |
Seems to be a matter of opinion. Some folks says they're swell, others say an over-oiled filter can spray oil contamination on some electronics that control fuel mixture.
Either way, you're probably not going to be able to tell any difference, except maybe in your head. I had one on a 911 a few years ago. It was OK. |
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Don't waste your money on something that will not improve performance. This filter does NOTHING for your car! You also have a pretty good chance of screwing up your MAF... :cheers:
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Dont install it. I just got done buying a new MAF and OEM Air Filter to replace a bad K & N.
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If you *really* have to use it, I would suggest to avoid reoiling the filter and just buy a new one (pre-oiled) for replacement when it gets dirty. I would go with the stock filter if I were you as MAF on boxster is extremely sensitive.
If I'm not mistaken, MNBoxster also said some time ago, that the K&N allows more dusts particles into the engine, possibly damaging the MAF in the long run. |
oh no.....sounds like I have to take it out and replace it with a stock filter.
I wish I knew this before my appt. |
I don't know that it's that big of an emergency.
I expect if the K&Ns let in too much crud, they wouldn't sell them by the truckload the way they do. I'm no engineer, but my understanding of the way these things work is that they can theoretically get a little more airflow because they have less "filter" to block the airflow. When you have less filter, you also have less filtering, so it's a compromise. The paper filter compromises on the side of filtering, the K&N on the side of (theoretical) airflow. |
I heard taking off the foam-type part of the filter and leaving just the paper part of the stock filter can improve air-flow. I haven't tried it myself though. Probably safer than trying the K & N.
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Hi,
One thing to consider is that while these filters may flow more Air (at the expense of some protection from Dirt/Grit - the very reason you have a filter to begin with), virtually all pleated paper filters are capable of flowing more Air than their applications demand. So you have to ask yourself, in this case, if more is really better? This is where the compromises of less protection and shortened Oil Change intervals must be weighed. These filters were introduced in 1969 by K&N Engineering, as a Long Lasting Filter, not as possessing superior performance. The company claimed that owners could drive for 50-100,000 miles between cleanings. This was their claimed advantage over Paper Filters. Only later, in the '80's, in an effort to boost sales, were any performance gains ever claimed... Happy Motoring!... Jim'99 |
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i went and purchased a stock filter. Should I:
1. swap out the new K N Filter and replace with the new stock filter 2. leave in the new K N Filter until it's time to replace and use the stock filter. Fab 00 Boxster Tip Blk/Blk |
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