3rd Gen Protege/MazdaSpeed/P5/MP3 General/Maintenance Discussion for 1999-2003.5 Models Only (BJ Chassis)

k&n = bad gas?

Old April-23rd-2003 | 04:39 PM
  #1  
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k&n = bad gas?

I installed a k&n filter into my P5, and didn't say anything to the misses.
She informed me about a week later that the car felt a little sluggish,
since she didn't know anything about the replacement filter she suspected a bad gas or something.
I replaced the filter w/the stock unit (good thing I didn't through the sucker away) and waited
to see If she would notice.
To my suprise, she said that the P5 is running fine...no more bad gas.

I can't ignore her comments, since she is the lucky one who gets to drive this baby everyday.

Did I do something wrong?

thanks,
manny
Old April-23rd-2003 | 04:56 PM
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If the K&N makes the engine sound noisier, then there is probably a percieved lack of power. Hear more noise == think engine is doing more work to get to same speed. People often complain of a "lack of power" when there is a problem with their exhaust (noisy).

I believe that the K&N is supposed to change the sound a bit, don't have one so I don't know myself.
Old April-23rd-2003 | 04:59 PM
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Bruce Leroy
 
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Did you reset the ECU by disconnecting the negative battery terminal?

When I had my K&N box filter on, I didn't notice much of a difference. I wasn't keeping track of mileage though.
Old April-24th-2003 | 04:10 PM
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maybe K&n is not all great as expected
Old April-25th-2003 | 10:59 AM
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I have the drop in! More responsive, slightly noisier, better fuel economy, resuable/lifetime ect.

I remember that mine felt sluggish when I first installed it and I simply drove it for a couple hundred clicks and felt better and better. I think its just the computer getting used to the new amount of air flow.
Old April-25th-2003 | 02:31 PM
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Does anyone think that the k&n filter improves top-end power, by sacrificing a little from the
low-end responsiveness?

thanks for the replies,
manny
Old April-25th-2003 | 11:46 PM
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In my experience using K&N filters....they seem to allow alot more dirt past the filter than most foam and even some "stock" paper filters do. They do provide a higher air flow but to me multi-stage foam filters offer the same air flow but block much more dust and debris from the engine.

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