leaky4runner

Newb question:

I need a new air filter, should I buy a KNN or go with a aftermarket paper filter?

$50 vs. $12.
with the KNN, do I have to change any settings?(will it screw with any EFI stuff?)
KNN# 33-2009

pros, cons?

1985 4runner, 22re

thanks

toyota4x4907

1) K&N, not KNN.
2) K&Ns are known to gunk up the AFM, TB, etc with the oils required to help filtration, often damaging the AFM. That being said, I ran a K&N filter in my '93 for 20K miles before I realized it was a K&N filter (PO installed it, I was young and didnt know anything about vehicles). Once I found out, I didnt know you had to use oils, so I ran a K&N high flow without "proper" filtration for nearly 80K miles with no ill effects. I just cleaned it regularly with compressed air.
3)I have used aftermarket paper ones and, IMO, they are junk. All of them I have used (NAPA, Fram, CarQuest, etc) have let actual dust through and got the inside of my AFM dirty. Yes they are $10-$20. Thats why-
4)- I use Toyota OE paper filters. With all the dust and smoke here in the summer, I need lots of filtration. Deff best filter I have used. its about $30, but I know, and have seen the difference, between aftermarket and OE.

leaky4runner

1) thanks for the clarification, typo or being lazy on my part.
2) thats exactly what I was looking for. not sure how common it is to gunk up/malfunction efi stuff but its good to know that it is possible. my vehicle is old probably already has "gunk" building up inside intake/sensors, last thing I need is my air filter to contribute.
I wonder if some of the people with "gunking" issues over oiled their K&N? or if its bound to happen no matter what.

3) was hoping aftermarket papers filters would work(at least a specific one... the one from NAPA is , while the Fram works comparable to stock)

4) I'll most likely not f around and just go with the OEM, but $30? damn it

thanks

toyota4x4907

yes, most people over oil the K&Ns, but still, some will get inside your intake. Lots of people use them with no issues. I have been debating on running a K&N high flow in my '95 22re, but after using OEM, I decided against it.

Drunner

First off K&N will not gum up anything if you are oiling them right. Second you never clean one with compressed air. You use water from a hose with no high pressure just straight from it. A specta filter that you can get at autozone are like a K&N but only like 20 bucks. Not as good but let more air through. I would buy a kit from LCengineering (the K&N one). Its a good kit and worth the cash.

toyota4x4907

Like I said, I was young (15-16) and didnt know anything about vehicles.

leaky4runner

didn't see a kit for the 1985 specifically. would this be a "kit" for a 85?
http://www.toyotacatalog.net/M1WebGe...B-1CE23AEE40D1
AND
http://www.toyotacatalog.net/M1WebGe...8-C680D2B0BC23

I have a stock motor(with stock exhaust, newer but stock).... would I really benefit from this kit? don't plan on "hotrodding" my motor in the future either, maybe a aftermarket exhaust.

figured over oiling would be the cause of the gunk build up(as I've over oiled the k&n on my xr400, but had no issues as all, of course its carbed and no sensors etc.)

michael1963

I have been using a K& N air filter on my 91 4Runner for some time now with no problems.

toyota4x4907

oooh. you meant an entire K&N intake. I was talking about a drop-in filter. But still, same basic concept.
Really, you wouldn't benefit from either of those. MIGHT see a few more MPGs per tank, but that can be achieved by cleaning the blow-by out of the intake runners. You can also make your own "cold air intake" with pipes from like Home Depot or Lowes. Factory intake ducting is actually a "cold air intake" already. it gets outside air from just behind the headlight.

leaky4runner

I was talking about drop in K&N (or aftermarket paper filter)in first post, Drunner mentioned the whole kit, which got me searching and thinking. I don't think the whole kit would benefit me enough to spend the extra dough.

Drunner

IMO I think if you are going to spend the money on a performace aircleaner, dont get the one that drops right in. Get the cone that replaces your stock one. The idea is to get the max airflow. I have the cone on mine and I can tell the difference. Your motor is like a air pump the more air you can get through it the better and more efficient it runs. The K&N kit (I think its called a fipka kit) really goes together with a header and good exaust and mild cam. LCEngineering sells this kit and it fits 85-95 22re. Just my expierence on it.

Drunner

Oh and I did not buy the tube just the filter kit. If you are going to do some mods to your motor than this is a good place to start IMO.

Teuf

I have had my KnN for 18 years give or take, (drop in). Wash it good with the supplied cleaner, flush from the inside out. Oil, and let sit overnight. No probs with mine.

hogman73

I just put a k&n in my 02. didn't see a difference at all really in power. cleaned the maf with electrical spray and that made a big difference. Although i have almost 180,000 on her and i'm sure the original owner never cleaned it. But anyway if you don't over oil it i think you will be fine. And you won't ever have to buy another filter, how green is that. LoL !!!

yotaman85

just stay away.. you will be better off stock.

Teuf

I think the cold air kit, CoughHOTAIRcough, is to pricey for the meager, if any performance gain.

DethYota

I love my K&N cone filter. I got it from a friend used so I didnt pay the retail price. I use it so I don't have to spend $20 for a new air filter every time i go to the dusty desert I play in.

For me atleast; $50 paid once for K&N > $20 every time I go to the desert

Going to the desert 3 times has already "paid" for itself including the $12 cleaning and oil kit

laskt9

anyone who says k&ns mess up the maf/map needs to do some research. if oiled correctly the wont cause any damage.

DethYota

Amen laskt9, Oil it and let it sit over night. If you did happen to over oil it, letting it sit will let the excess drip out. Rock on!

yoder519

ive used the cheap ones from advance fro almsot 4 years now with no problems. purolator i think is the brand