Is there really a 4hp gain as stated on the Courtesy Parts site? Is there really a difference vs. the stock air filter?

 

I dropped a K&N panel air filter in my stock air box this weekend. I can't speak for the 4 HP gain because I have not dyno'ed my car. The car feels stronger in the middle to upper portion of the powerband( over 4000 RPM ). Also, the engine growls a little more when running it wide open.

 

i have a bit more growl too... no idea on the hp, it's not obvious.

 

I seem to remember a 4 hp gain, but the owner also had the y-pipe change.
The filter alone probably has neglegable hp gains by itself, but with other breathing mods will make a difference over stock.

I to went with the panel K&N, mainly because it is far better than stock and you only buy it once.

 

where do you guys get it?

 

Yes, it has been dyno'd to increase peak hp by 4 by Import Tuner magazine, maybe others.

 

pep-boys

 

is it one of those universal fit thingS? or is there a special one for maxima

 

if you buy the direct replacement panel filter, then you need to buy Maxima-specific filter. if you opt to go with open-box cone filter, it doesn't matter what kinds you buy as long as you buy the adapter piece.

the K&N panel filter is very efficient filter. when they(the turbo magazine) tested their filter, they did a run with the stock filter, the K&N, and open-box.
it was like 3-4 hp jump in the 'top' end when the K&N was used. when they took the filter out completely and ran the car, the difference was only like less than a horsepower..which means, the K&N is darn good!!

 

I got mine at AutoZone. The specific K&N part number for the 2001 Max is 33-2031-2.

 

I remember you telling to get it from Pepboys, but i went to the one in Laurel and all their K&N filters were way too large to fit. Plus no guides or nothing to say which one fits where. The store is kinda ghetto considering where it is also.

I guess I will try Autozone, TrakAuto aint have nothing.

 

I know the pep-boys down in germantown, off of 355 just past the intersection of 118 has them. It's kind of far from Laurel, but right by where I work Autozone should have them also.

 

juss like they sayn i couldnt really tell a difference w/ hps, but after throwing 1 in my mpg went from 19-20 to about 22 so im happy.....but now that schools started again my mpg went back down to 19-20....i really shouldnt try racing my friends cobra everyday...but im guessing if i slow down i should get my mpgs back up
A_T_W

 

How much are you guys getting the filters for at pep boys or autozone?

 

I called the Dealer's parts department and asked them what the part number was for the stock air filter for my Maxima. Then I went to the K&N website http://www.knfilters.com and did the cross reference thing. Cross reference is at http://www.knfilters.com/crossref.htm

Next I called all over town and found a K&N filter in stock at a fair price. I run them in all my cars. Even the minivan. Made a big difference in it.

 

I got one from AutoZone for $45 two weeks ago.

 

$45 seems kinda of steep, but then again I am a cheap bastard!

 

yeah....just making sure if someone wants to donate their money for worthy cause...

 

are you gonna get side skirts and rear bumper kit? it'd make your car look much more complete. just my 2 cents

 

Silly Wonton...read his sig.

 

it's always nice to have someone else backing me up when i'm not here...hehehe...

 

$44.00 at Autozone. $10.00 for the cleaning and oiling kit.

 

did u guys buy the oil or air filter?

 

whats the difference between a K&N filter charger and just a filter?

 

The K&N filter IS called a filter charger because it charges the airflow by straightening the airflow.

 

both.... you can get the filter now and the cleaner/oil later on when the filter is dirty