Hey guys,
What are your opinions with the K&N Air Filter in the Z? Yes.. or No?

 

My opinion: sure, why not.

I have one in my Z. Works fine. Any performance gain you get in terms of power will be in the tenths or hundredths of a percent, however, so don't expect a lot. The one advantage you get is that you don't have to worry about buying new air filters.

 

Got one too. Cheaper than a CAI.

 

Just an opinion but.... I would say why bother?

There is a risk that the oil will contaminate the MAF sensor. (if over oiled)
There is a small risk that it will filter less well (particularly if under oiled)
The gains are small (at best)
And cleaning and oiling a filter is messy icky work compared to buying a new clean paper filter an popping it in in a couple of seconds.

I have a K&N in my truck and the cleaning and oiling process is a chore. Remove the dirty/oily filter. Spray the cleaner to get the oil off. Rinse with water. Let it dry. Re-oil it. Handle the oily filter to reinstall it. On the truck it produced good gains because the stock air intake was very poor. On the Z the stock air intake is good, so I would not go through the hassle of the K&N for such a small gain.

This is just my opinion of course.

 

I have a K&N with about 5K miles on it. It just switched to a POP-Charger. K&N filter did make a difference, at least to me. Is any one interested in my K&N? Say $25.00 plus shipping.

Lou

 

Why would the filter be over oiled? They are pre-oiled from K&N and have the right amount on the filter. So their is no way a K&N filter can ruin your MAF senser(unless you add more oil on the filter and it is dripping with oil)

Why clean your K&N filter, just buy a new one when the redness of the filter turns a blackish color. It should last along long time before it needs to be replaced(you would by atleast a dozen OEM filters, by the time you needed to replace a K&N. All you really have to do is, periodically take the filter out of the "intake box" shake it, bang it against your palm of your hand and re-install, simpal as that.(just to get the bigger elements out of the filter grooves)


:EDIT: for spelling

 

If your going to get a drop in type filter I would go with the nismo one from japan. Check it out theres also a dyno showing gains in the upper rpm range.

http://www.performancenissanparts.co...roducts_id=265

john

 

Why get a K&N for $40 when you can get a popcharger for $100 and have real gains?

 

Real gains? Please explain..

 

i wouldnt waste my money on the k&n filter. i have tried it in the past and didnt notice anything. cleaning it was a pain. save your money.

 

You are supposed to clean and oil the K&N filter once and a while. It fills with dirt like any filter.

If you are just going to replace it, why not just use paper since it is cheaper?

 

I remember a dyno or 2 that lost 1-2hp even.

wouldnt waste my money.

I keep the filter clean each oil change. and when its time to replace it; 8.52 from courtesyparts. easily done at home.

no worry of oiling or any of that crap.

just my 2cents.

 

See the numerous posts on the JWT Popcharger. More power than any CAI.

 

I think ur talking about the RSX Intake Test, where they tested around 10 different intakes. One intake for that car freed up almost 20 horsepower. I was pretty surprised. And yes, they tested the KN filter and there was a decrease of 1-2 HP.

Just buy a CAI or one of those popcharger things.

 

Dude, what kind of filter do you think is on 99% of CAI??? A K&N,
so you really dont know what your talkin aboot, so just sit back and enjoy..

 

Show me them dynos...... If not, dont post

 

Real simple. The K&N filter is ok. Some get these because they find it easier to clean it, and it does not need to be cleaned as often as a stock filter. the NISMO drop is is not worth the 40 bucks. To me it is stock filter with the NISMO name on it(that is what you are paying for right, to say you got a NISMO filter?) and you would not feel the gains from those two if there was a gain. Most CAI use a K& N filter, but the reason there are different numbers from dyno is from how the kits are made, not the filter.

 

In my opinion:
I have had both the K&N drop in Filter (not the K&N Typhoon) and the JWT pop charger.
I did not notice any difference in power with the K&N (if that's what your after). I did notice a significant difference with the JWT (after you hit about 4500 RPM's and above at WOT). Also keep in mind, the JWT is much louder at WOT then the stock air box.

You can find a dyno at this site:
http://www.jimwolftechnology.com/cus...asp?PartID=350

If you buy a JWT, don't pay the price listed at that web site. It can be had for about $100.00 shipped.

 

My experience is different, I'm not sure if I feel a difference or not. I've felt a significant difference on every mod I've done, except the POP-Charger. So I called Doug Stewart at Crawford to ask him, if I screwed up. He said I didn't lose power, but he didn't think I gained much. Oh well, it sounds great at WOT.

Note - The K&N drop-in was the first mod I made and I did feel a difference back then.

Lou

 

you own stock in K&N or something? sure are protective of it.

but thats ok; your childish threat doesnt affect me; so instead Ill just make you look silly.



thanks to droideka for the dyno
"Dynos don't lie, or do they? K&N COSTS ME HP. Runs were roughly one month apart in almost identical conditions. Temp was actually 1-2 degrees warmer with the paper filter on 03/08/2003.
"

from
https://my350z.com/forum/showthread....6N+filter+dyno

alright then; thanks for playing. next time dont be an ***.