K&N - First Mod.
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Joined: Apr 2007
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Concerning the filters. There is much threads here which speaks about it and if they knows now that it should not be replaced to have more hp (or very little), they knows that it improves the noise. It is that which I search, now if the engine breathes better, it will be +.
Wich is according to you the best solution, that which stops the dust, which lets pass less hot air and which rather easy to place, a small summary would be welcome.
Thanks a lot.
Vincent
Wich is according to you the best solution, that which stops the dust, which lets pass less hot air and which rather easy to place, a small summary would be welcome.
Thanks a lot.
Vincent
Last edited by Gpjli; Dec 31, 2010 at 10:39 AM.
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You have to clean and oil the reusable (KN) type filters. There is the possibility of too much oil causing problem w MAF sensor affecting performance and maybe check engine light. Too little oil and you have a very ineffective filter. They pass more air and more dirt as per independent tests (No I don't remebber where I saw the comparo. sorry). They have less access to cold air than factory setup has. Horsepower gain if any is negligible. Imo, better to throw out the filter and replace using a factory part at set intervals or upon inspection. Those who love machines or want to protect their investment will understand this. Others, well, varoommm it is
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I am on ordering a second filter and have it on hand for replacement when needed. Then I can patently recharge the other and let it dry accordingly. This should reduce the possibility of recharging incorrectly. My kids have been doing this for their cars (Scion, Genesis, Mini, Frontier) forever and we have never had a problem. I did use the Stock Replacement Filter type on a 528i and a QX45 , but never saw a difference.
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