You bet they do!
I just got one this week, and I'd say conservatively I burned up a good 1/4 of a tank gunning it from the line and going WOT. 20 Min ago I just filled up 17.02 gallons and my odometer read 511.5 miles on that tank!

 

anybody else got any good stories just by adding a filter?

I can't wait to do more!
MODS! MODS! MODS!

Get one of these filters!

 

are you refering to the pop in filters for the stock intake, that may have improved mpg, but it didn't increase performance what so ever.

 

I like it. It may not provide any tangible gains, but I still liked it. It's probably a placebo effect, but the engine sounds freer to me. I didn't want to deal with the cons of the cone intake or CAI, so I just went with the drop-in.

 

I have heard of several dyno tests performed with just a pop in K&N filter, the results of both tests were the same,there was a 4HP improvement,so yes your engine does breath better. As for gas mileage I would not expect much of a improvement maybe a Gallon or 2 per fill up.

 

I just ordered my drop in today. The stock air filter needed to be replaced anyway and I wasn't ready to get the Pop charger so the drop in will have to do for now. We'll see what happens.

 

I have never purchase one becuase I didn't think they worked. My co-worker lives by these things. Maybe I'll try one.

 

This is from my own butt dyno, however from what I can tell before on the freeway at 3000 RPM's I was doing about 70-75 MPH. Now at 3000 RPM's I go 80-90 MPH. I am getting way better gas mileage. I replaced the clean stock air filter because I am planning on doing the OSCAI this weekend, and with just the drop-in I have noticed a HUGE difference. Am I just reading too much into this, or has anybody else received similar gains with just a drop-in?

Can't wait for the OSCAI!

 

...I had a drop in with a Borla cat-back system in my Jeep. I did notice some minor HP gains and maybe 1 mpg difference.

 

I have the drop in filter and I have gained about least 3 MPG on average when I drive responsibly. I don't know about any performance increase but it does give the engine a slightly louder growl above ~3K.

 

I gotta drop in on my 96 auto max. Performance gains you ask? not much... it is a bit (just a bit, or maybe itz just me) faster at higher speeds... other than that... none.... gonna get a JWT Pop Charger soon... Just trying to find someone that will sell it to me....

 

How much was the drop-in? I bought my cone filter alone for $39 @ Autozone. Thought I got ripped, but anyhow. For performance, my motor spins like crazy up top, which I wanted more than down low, because I'm still having trouble launching it from a roll these days because of Remington tires. As for music...well, you'll have to hear it for yourselves past 4K. Up to now, I thought that RX-7's had the sweetest motor sound, and now, it does sound like a small block V-8 built to rev.

 

Stratteo...question....when you hold your K&N filter to the light, can you see small pin holes? I cleaned mine the other day and saw small holes. Was just wondering if that was normal on a new filter or whether there is a problem with mine. I don't want to use it if the holes aren't suppoesed to be there.

 

The drop in was about $90 CND.... so about $60 USD.. i think i got ripped...At least you get a performance gain you can feel =).... me.. well just htat i don't have to replace this filter for a long time... just clean..... anywayz, is your's just a generic filter? or the JWT/Stillen pop charger?

 

I paid 49.95 at Autozone for my drop in. Even if there is no performance gain, I live in the country and generally replaced my air filter at least twice a year so I should get the money back if I keep the max a couple of more years.

 

Buahhahaha! Your out of mind dude. Your are still doing the exact same RPM's at 70 as you did before. Put it this way just because you add a few HP your gear ratios don't meraculasly change too! I wish that was the case, I figure with your logic my car could do 95mph in 3rd and be only at 4K rpms hehe. Your RPM's are always going to be exactly the same unless you tinker with your gear ratios.

 

Man, the speling in alot of the posts is just horable.
No offence, emax.

 

You mean "horrible"?

 

Jokes are never funny when they must be explained (I find myself explaining my jokes often... hm...).

"Speling" and "offence" are both incorrectly spelled, also.

 

I ran a drop-in K&N for about a year. The reason it feels nice is that it flows great when it's NEW(clean). But after a few thousand miles, it didn't feel as good or sound as nice. Although the filtering ability stays right up there when it's dirty, it's my opinion that the K&Ns don't flow as well when they are dirty.

So instead of cleaning them at 50k or whatever K&N recommends, clean/oil them twice a year or every 5000 miles or so.

 

Yes, I just looked, and there were teeny tiny holes. Not big enough to cause any problems by letting anything through that shouldn't be there.

I paid $45.95 + tax at AutoZone for it, and I highly reccomend it to anyone that is wondering.

 

i put one in about year ago and the thing i noticed was throttle response. before i had the k&n if i were to just blip the throttle i wouldnt get much but now wiht the filter when i blip the throttle its much stronger it like throws u in ur seet other than that i havent noticed anything

 

i have the drop in also, the engine does rev a little better than the stock, also what is the oscai?

 

I just put mine in tonight. Yes, do believe it frees up the engine a little bit and my second gear even feels better. But if my wife were to get in my car and start driving it I bet she couldn't even tell. I'll have to drive my car a bit more to see any other major differences. I could of raced a non-turbo 3000GT but he didn't want any...regardless if he was gonna race or not I was going to gun it anyway to see what the filter was all about.

 

Great! Thanks for checking! Just wanted to make sure my filter was "normal"!

 

Ok exactly what is the K&N filter and where can you get it? Sounds pretty decent. Im new so any specific details about this would be great. Thanks and im trying to learn enough to stop asking all these questions. Thanks again

 

You guys gotta realize that part of the effect you're feeling is the fact that your are going from a dirty filter to a clean one. The real fair comparison would be to test a cleann OEM filter against a clean K&N.

DW

 

Amsoil is good.

 

Does anyone have the model number for this filter? Or do they differ for the different years. Say I went to Auto Zone to look for one what would I ask for? Just a K&N filter or what? Im just curious. THanks for any help in advance.

 

 

I purchased the ractive heat shield filter from Ebay. I got it at a great price, $25 with shipping. I noticed a difference right of the jump. I swear when I put it in reverse I was flying out and I didn't even put the foot on the accelerator. THE FILTER IS NOT LOUD AT ALL. I was impressed by the engine's baby v8 growl. Get one on ebay. Everyone who has road in my car has noticed a difference also.

K

 

i got a K&N filter and i beat a ferrari. now i got a CAI and i'm looking forward to beating McLaren F1s.

 

Actually I replaced a month old filter. But I admitted my gains are barely noticeable. It still has to give me a little more flow than a stock/Autozone filter, right?

 

Yes.

 

IMHO the K&N may or may not give any noticeable power. But, I think the advantage is that you clean it instead of replace it...saves money.

I've had mione for 100000 miles now...almost exactly. I've cleaned it a total of seven times.

50 (for filter)
20 (for two recharger kits, I could have gotten away with one...but I share with others)

A total of $70

Seven stock filters would be 7x15=$105


Thats why I like it.

 

DARTHSWAN -
Can you post a link to this heat shild filter on ebay?

 

Here is one of them. They have them through out there. You just have to look. I'm at work on a T1 line, so it takes no time to look.

http://cgi.ebay.com/ebaymotors/aw-cg...6&tc=photo6764

 

Sorry for the ignorance, but what does the OS stand for in OSCAI. I'm thinking of purchasing a CAI, but is the OSCAI something I should consider, or is it the same thing?

Van

 

Actually man, your RPMs CAN change even if you have not messed with gear ratios. RPMs are not fixed to certain vehicle speeds, they correspond to ENGINE speed.

So if you tow a heavy load, your RPMs will increase at the same speed as with a normal load. Same with certain types of tires (like studded ones). However, you are correct in that you cant make your RPMs decrease for a certain speed unless you change the ratios. Nor can the filter itself allow you to go faster at the same RPM.

 

when the torque converter locks up doesn't it mean same rpm at certain speed?