DO K&N AIR FILTERS really give u more HP

[selectar69]

Yeah ppl, studyin to use a drop in air filter in the civic, they are really expensive, do they really improve horsepower and by how much?

[praise]

Drop in air filter would not give you more HP. That's because your entire intake system remains the same. However, you would never need to buy another air filter again and your airflow would be less restricted as with normal paper filter, which becomes restricted as it start to collect dirt. K&N would allow air to flow as long as 50000 miles before it needs cleaning, which in turn reduce your fuel cost. If you want HP gains you need to install a cold air intake or short ram intake. Remember HP gains is at the expense of fuel. With the cold air ot shot ram intake your HP can improve by 5-10 percent.

[selectar69]

alright cool, thanks for the advice!

[jjcp]

well said praise

[Goolie]

good info here ppl

[Bacon]

[legendkiller@1891]

[wagonrunner]

^^
keep in mind, when those claims were made by K&N, cars with < 100whp to begin with, were not the mainstay of their R&D.

[Bacon]

As I saw with my own eyes on a local (Trinidad) dyno.........4 or 5 whp gain on a 83whp vehicle............


we talking whp not hp.............

[legendkiller@1891]

^^yea but i never said i believed the add...that's just advertising, but by providing the wrong information they think people would buy their products**although some people do** but that's just what all advertisements show, information that sounds and looks good but 80% of the time most of it isn't true...

[Dave]

k&n is a reputable company with alot at stake and i am sure if they make a claim then i am sure they can back it up

panel filters flow more air than an oe replacement and even though that effect may not be felt i am sure it can be measured even though it may be a minimal 1-2whp, its still whp

in the real world, a panel replacement is not sold mainly as a power adder but as a cost effective solution when buying a vehicle and keeping it for a number of yrs and looking for ways to enhance performance and being ever so mindful of monies spent on maintenance. i would go into the whole synthetic oil but most ppl change like dead dino blood so i won't even bother.

i had one for 4.5yrs on a new vehicle and trust me it paid off when considering $35us, approx $220 vs $ 45tt (generic) or$550tt (oe) for a filter approx every 10k -12k km

[legendkiller@1891]

[bushwakka]

i did dynos on my car with an without de k&n...wit de k&n gave an increase of 3 hp and 4 lb/ft torque.....but, the runs were done on different days, so it may be due to some other factor like temp, humidity etc.......very hard to place this on a dyno run

also, i find i hav to clean my filter every 10,000k actually.....i drive in a dusty environment, but that thing gets filthy with bugs and what not..........i wud recommend it as a good upgrade to OEM, but don't expect a noticeable increase in power

[wagonrunner]

[Dave]

k&n tests their panel filters against what the manufacturer would sell their vehicle with and a new at that.

some oe new filters are pretty dense and they sacrifice power for cleaniess so i could see some other k&n panels yielding greater results than others

cone filters are the best dependant upon the application u use them for

a dumb question but do ppl know what most filters have the ribbed effect for?

[wagonrunner]

[legendkiller@1891]

[thegtiman]

[Strugglerzinc]

[red_dragon]

[nismown3d]

I've seen n/a cars actually lose HP as well with intake systems. Usually you want to stick to higher end intake systems that are properly tuned like HKS, Greddy, Apexi, etc. I'm not a big fan of K&N filters, any filter you need to clean will always be more restrictive after you clean it than when it was brand new. The HKS filters are the best, it has a velocity stack in the mushroom assembly, and you just replace the whole filter element instead of cleaning it.


Usually any car with forced induction you'll see the biggest hp gains.

[thegtiman]

[red bwoy]

i think a lot of ppl missed one important fact in most tests by companies with panel or free flow filters most vehicles actually loose HP at low revs but gain appreciably at high rpm's i can attest to this my familia has an engine rated at 130 bhp i've never dynoed but with my oe filter i never crossed 175kms on the k&n panel filter i cross 175 with ease and actually feel a better pull at higher rpms with the K&N

[W2J]

A engine is a pump the more air you get in and the faster you get it out the more power you will make of course once you have the supporting mods. But we are not talking about adjusting fuel and ignition curves, my belief and experience being on the dyno and off you do make more power by adding a KN drop in over the conventional paper element, if you wish to see I have a simple machine supplied by KN which can be calibrated to show the differences, you are all free to come and see.

Gerrard

[rjaggs]

i bought my car with the stock intake and paper filter, eventually i installed a short ram intake which i used for about a year and a half. I recently reinstalled the stock intake with a K&N drop in, and the three scenarios yielded noticeably different results. Obviously the worst option was the paper filter, even when it was new it couldn't compare to the K&N drop in. The SRI gave better top end performance especially when vvt engages. The drop in resulted in better low down performance but lost out at higher rpms.

All in all i am pretty satisfied with the k&n drop in for the 'colder air' pulling from the front of the car as opposed to the short ram.......that is until i decide to install a CAI.