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Series I Aftermarket Performance Modifications Discussion of power adding modifications

Impressions on the K&N panel filter

Old Mar 2, 2006 | 02:01 AM
  #51  
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For all you guys that feel an increase from the K&N: How many miles was on your original air filter when you replaced it?

One of the biggest issues with a "upgrade" like an air filter or spark plugs is that the old ones are often worn out or pluged up. So the replacement may not be better than stock, but it is better than what you had.

Just a thought..
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Old Mar 2, 2006 | 09:24 AM
  #52  
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Originally Posted by dsmdriver
For all you guys that feel an increase from the K&N: How many miles was on your original air filter when you replaced it?

One of the biggest issues with a "upgrade" like an air filter or spark plugs is that the old ones are often worn out or pluged up. So the replacement may not be better than stock, but it is better than what you had.

Just a thought..
Do you mean an increase in fuel economy, power, or smoother idle? My stock filter was replaced at around 27,000 miles, which, if I remember correctly, is just 3,000 miles shy of the recommended 30,000 mile filter change. I felt no change in hp as mentioned earlier, but before the swap my fuel economy was subpar at around 15-16 mpg. Now, its a more acceptable 18-19 mpg city. I see what you mean (if i'm reading you correctly) though when you say that I could have just been restoring, rather than adding to, the original fuel economy that I lost over time with a filthy paper filter.
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Old Mar 2, 2006 | 10:20 AM
  #53  
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Pretty sure the filter is supposed to be replaced every 15K.
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Old Mar 2, 2006 | 10:35 AM
  #54  
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Originally Posted by Im_DANomite
so tell me what my problem is. car doesn't hesitate and there isn't any loss in power. i'm not burning any excessive amount of oil. i have driven my car for 20k on the stock filter and had no evidence of oil. drove on the k&n drop in filter for about 10k and just two weeks ago i swapped it out for the racing beat system. that is when i found oil all inside the intake boot (ribbed portion). the oil consistency does not feel like engine oil, nor does it smell like engine oil. so you tell me...

if i find oil inside the intake boot again, i'm going back to stock.
well, if your checked the consistancy with your finger it would have been pretty obvious if it was K&N filter oil since the oil is died red and your finger would have been bright red.

Judgeing by the lack of that obvious comment of the oil turning your finger turning red... you tell me
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Old Mar 2, 2006 | 10:47 AM
  #55  
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I would guess that your problem is similar to what the people in those other threads, running stock filters were having. Not sure what that was, but you could PM them and see if they found a solution.
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Old Mar 2, 2006 | 10:56 AM
  #56  
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I had 15,000 miles on my stock filter when I changed to the K&N. I can honestly say there is no difference in the low rpms but I do "feel" something when you get on the throttle to pass or getting on the highway.
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Old Mar 2, 2006 | 11:24 AM
  #57  
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Originally Posted by Red Devil
Pretty sure the filter is supposed to be replaced every 15K.
Right, 15,000*2=30,000
Actually, looking at Mazda's service schedule, it says the filter should be cleaned at 15,000 and 30,000 miles, and then replaced at 37,000 miles.

Last edited by Zielritter; Mar 2, 2006 at 11:29 AM.
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Old Mar 2, 2006 | 05:20 PM
  #58  
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Originally Posted by r0tor
well, if your checked the consistancy with your finger it would have been pretty obvious if it was K&N filter oil since the oil is died red and your finger would have been bright red.

Judgeing by the lack of that obvious comment of the oil turning your finger turning red... you tell me
yes, you're quick. so in fact, it was a puddle of k&n filter oil.

can someone with a k&n drop in filter check the intake boot between the MAF and throttle plate? if you find filter oil puddling up along the ribbed portion of the boot, could you please verify for me? otherwise, i'll eat my words and assume it's blow by.
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Old Mar 2, 2006 | 06:21 PM
  #59  
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Just went down to the garage (just for you DANomite ) and pulled the accordian off to check for the oil. There is oil in the last 2 ribs by the throttle body, but it definatly looks and smells like motor oil.
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Old Mar 7, 2006 | 08:36 AM
  #60  
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Originally Posted by expo1
Very interesting read, thanks for posting that. A former boss of mine drives & races Porsches. He told me he dyno's his race car with both an oem filter and a K&N, and the oem filter gave better performance.

I have to wonder how much of the perceived gain is just from the ECU readjusting.
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Old Mar 7, 2006 | 07:11 PM
  #61  
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Originally Posted by Mazda-Rati
Just went down to the garage (just for you DANomite ) and pulled the accordian off to check for the oil. There is oil in the last 2 ribs by the throttle body, but it definatly looks and smells like motor oil.
thanks man, i appreciate it. i guess it must've been a combination of the k&n filter and motor oil. although i don't understand why there would be so much blowby. looks like an investment in an oil catch can isn't such a bad idea.
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Old Mar 8, 2006 | 11:35 AM
  #62  
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Is the MazdaSpeed Replacement filter an oil or dry filter? is it better or worse than stock.
Thanks
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Old Mar 14, 2006 | 08:40 PM
  #63  
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went ahead and dropped the 50 bucks for a K&N they had to special order it at autozone. but it was my birthday and kinda a gift to myself. Havent gotten it out on the highway or played with it but in the short trip to the car wash i could hear a slight difference.

Either way i'm happy, the stock filter was thick as hell and (me being a dork) blew air from my mouth thru each, i could actually feel the air on the other size with the K&N, with the stock it was like blowing air at a brick wall.

hell for that cheap of money its nice knowing my car will breath a bit easier. anything else is just bonus
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Old Mar 23, 2006 | 10:55 AM
  #64  
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Just ordered mine....I am getting the 15k service done and for the Mazda OEM it was going to cost $40.00 at the dealer so I figured what the heck, I'll get the K&N drop in. By doing it myself it will only cost me $5.00 over OEM...Should have a review by Mon. 03.27.06
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Old Mar 23, 2006 | 11:32 AM
  #65  
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Noone has mentioned the most important part of adding a K&N....

Do they still include a "K&N Filtercharger Equipped" sticker with new filters? That sticker alone, when stuck on your airbox, is worth 15hp. MINIMUM. 20 if you stick it on a window.
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Old Mar 23, 2006 | 01:48 PM
  #66  
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From: Misinformation Director - Evolv Chicago
^^^
That's nothing...adding a Racing Beat or Amemiya or Pettit or any other rotary tuner sticker adds like 50bhp, but they have to be placed level on a spoiler to work properly otherwise they lose power. And if you have more than one sticker, there is not law of diminishing returns to just keep adding them and counting the extra 50s.
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Old Mar 23, 2006 | 01:57 PM
  #67  
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Nothing tops the 'Type R' sticker.......that biiiiiotch is worth 250hp at the wheels.
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Old Mar 23, 2006 | 02:04 PM
  #68  
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There was something online a few years ago called "Type R your Jetta", which added all kinds of goofy paint, wings and exhausts as you clicked it. I seem to remember it being associated with an animated short showing a Jetta (or GTI) racing a Civic, with an hysterical "weem beem beem beem" voiceover as the cars "raced".
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Old Mar 23, 2006 | 02:07 PM
  #69  
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Back in college there was a guy with a fixed up Saturn and it actually had Racing Beat stickers on it. One day, when my RX-7 was parked next to him and he was getting out of his car I asked him about the Racing Beat sticker and why his Saturn had it. He gave me a confused deer-in-headlights look and mumbled some incomprehensible answer.
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Old Mar 26, 2006 | 12:30 PM
  #70  
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Installed the K&N drop in filter yesterday! When I seperated the intake hosing to gain access to the box to remove the OEM filter I found some oil in it...not a ton though.

As for the K&N filter, I am glad I got it. I agree it does add a touch of bass to the sound. You can also hear the intake sucking in air with a slight high freq. whistle when you really get on it.

The engine idle is slightly smoother and the engine pulls smoother through the RPMs. I cannot say that the car feels faster from 0-40 but above that it seems to have a little more punch. Probably feels that way because of the butt dyno effect.

Glad I bought it...the sound is good, the engine runs smoother and I don't have to buy another filter again! Here's hoping for better gas mileage too!
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Old Mar 26, 2006 | 01:13 PM
  #71  
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Originally Posted by DrDiaboloco
Noone has mentioned the most important part of adding a K&N....

Do they still include a "K&N Filtercharger Equipped" sticker with new filters? That sticker alone, when stuck on your airbox, is worth 15hp. MINIMUM. 20 if you stick it on a window.

Just read this! I am going to add the sticker to the airbox so I can be more stealthy
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Old Mar 31, 2006 | 09:11 AM
  #72  
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i read on another thread about letting the filter sit on a newspaper overnight before installing to remove the excess oil. Anyone tried this?
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Old Apr 3, 2006 | 11:02 AM
  #73  
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Originally Posted by grvmchne
Just read this! I am going to add the sticker to the airbox so I can be more stealthy
I had one on the airbox of an old car of mine, if only to keep the guys at the auto service centers from attempting to throw out the old filter. It was worth a mere 10hp in that application because I had to trim the sticker slightly to keep it from overlapping the side of the airbox.
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Old Apr 3, 2006 | 11:19 AM
  #74  
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Originally Posted by Jaguar_MBA
A wise man you are

I have the aFE (Advanced Filter Engineering) drop in filter. I figure it has already paid for itself once already.

It just amazes me that people are willing to spend $350+ for an intake that might give them -3 to +3HP.....then they justify it by saying " I love the sound it makes" Great so you spent $400+ for a noise maker?....pure Genius.

Here is to you, Mr. Rice Car Driver Intake Noise Maker.....you are not happy with a Stock OEM intake..hells no You have too reduce your HP and make sure everybody can hear you come home at 2AM in the morning....Pure Genius.

When you drive by a dog kennel, the canines all stop and listen to you. yes truely, your noise making ability has gone beyond human perception.

Cost is of no concern as long as that suction intake is sucking you hard earned cash.BURN!

So Crack open a bud light Mr. Rice Car Drive Intake Noise Maker and rest assured you car can vibrate your neighbors windows anytime you want to.
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Old Apr 3, 2006 | 03:12 PM
  #75  
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I've had my K&N filter for about a month now. I feel no difference in performance and my car still idles as smooth as ever. I might hear a slight difference in sound - its hard to tell as I had also installed a Greddy SP2 cat-back two weeks earlier. My car is an '05 with 7000 miles and the stock filter was clean as a whistle when I took it out.
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