K&N INTAKE

[Pookapotamus]

has any one tried the K&N intake system for their 4.0L? I am looking to get a little more grunt and perhaps better milage. i am planning on going with a 62mm trottle body soon too and was wondering what every one thinks of the K&N. i am running a stock filter system at the moment and i know that there is no trail jammer kit for my year of XJ.

any comments?

[fug]

My opinion... Don't waste your money.   There's not much you can bolt onto a stock 4.0 that will help much in the horsepower dept.  You can add a cam or go stroker to get some more power out of 4.0 but the usual intake/exhaust/chip don't give you too much.

[Bushluver]

I think it was last months 4 Wheeler Mag that did a Cool Air Intake shoot out on a 4.o L Jeep (TJ or YJ can't recall).
They were seeing gains of around 10-15 hp with some intakes.
These were dyno tested results.
But a 5 - 10% gain in HP isn't bad for a couple hundred dollars in my opinion.

Some of the intakes hurt the overall HP, but most increased HP and Reduced TQ slightly, so be careful what you buy.

If memory serves correct K&N FIPK was middle of the pack as far as performace went.

[Pookapotamus]

well i have allready ordered it just because napa is getting it to me for $75 and k&n claims 7 hp gain, i figure when i go with a better trottle body this will really help

[calltrex]

K&N filters just let more dust into your engine

[Pookapotamus]

i had one before on my blazer and loved it.

[Mudhawg]

i put a K&N cone filter on my 4.0L's stock intake pipe and the jeep lost alot of beans..

[JackstandJohnny]

Doug was that the cone from a Tahoe u were talking about? i think your jeep has more aftermarket chevy parts on it than Jeep  

is napa getting you the whole intake or just a filter?

[Mudhawg]

hahaha well it was a jeep thing but all that sh*t broke...

[Pookapotamus]

it was the complete cold air intake kit. installed it last night, it is a little better at low rpm and much better over 3000 rpm, alot better trottle responce and passing has improved greatly! all in all i am quite happy with the $75 buck i spent.




hmm sorry pics from the blackberry are a little fuzzy i will have to pull out my other camera and snap a few.

[jeeper]

i got a used cold air intake off a newer wrangler 4L  and it fit almost perfect on my 2.5 l  and i noticed a better gain and more fuel economey

[FullMetalJeep]

K&N filters just let more dust into your engine

X2

wish I still had my stock intake, K&N is BS that wrecks your engine unless you wash it once a week and everytime you go offroad, but even then. They're only for high modded street racers as far as im concerned.

[esi]

The more dirt thats in a K&N the better it filters. I've heard of the 2nd gen 7.3L powerstrokes (oval cone filters) colapsing K&Ns and dusting motors, no warranty. Now I try to push customers towards other brands unless they're really stuck on the brand.

[Immortal]

other brands such as.....?

[Waytec]

the other issue is if you barry the nose it will let more water into the engine, also can get very clogged with crap from the trail.