air intake
Senior Member
Joined: Jul 2009
Posts: 735
Likes: 1
From: Utah
Year: 1999
Model: Cherokee
Engine: I6 4.0L
X100 on the drop in K&N. I don't see why everybody takes out their stock air box and throw in crappy spectre filters from checker. For like $10 more you can drop in a K&N filter. The stock air box, in my opinion was a pretty good design by jeep to protect the filter from water and other objects, and i would be willing to bet that the box helps direct colder air into the engine than a cone filter without the box. The intake systems that everybody is doing has the filter in an open area right next to the engine.
CF Veteran
Joined: Jan 2009
Posts: 3,513
Likes: 0
From: Aurora
Year: 1997 XJ
Model: Cherokee
Engine: 4.0 HO JASPER MOTOR
so i have the whole K&N kit with the hose and heat shield does that make it wrong? mine works just fine and i get great airflow i personally hate water and mud so its perfect for me
Seasoned Member
Joined: May 2010
Posts: 309
Likes: 0
From: Wherever the AF sends me!!
Year: 1997
Model: Cherokee
Engine: 4.0
With the complete K&N setup with the heatshield helps keep a good majority of the heat away from the filter... much more than just sitting a cone filter where the air box used to be, or even in the base of the old airbox.... as soon as I can I plan to replace the stock paper type air filter with a K&N, but since I had just replaced it right after purchase of the Jeep with a new Fram it can wait just a bit longer...
I'm new to jeeps and all but I know in that engine bay it is hot as hell. Why not just line the stock air intake box on the inside with a type of heat shield and then direct the opening in the front of the box to somewhere where it actually gets cold air? Just an idea, again i'm knew and idk how well it will work.
I'm new to jeeps and all but I know in that engine bay it is hot as hell. Why not just line the stock air intake box on the inside with a type of heat shield and then direct the opening in the front of the box to somewhere where it actually gets cold air? Just an idea, again i'm knew and idk how well it will work.
Thats what I did with mine, I routed my K$N into my stock airbox. It draws air from behind the drivers headlight, Id consider that cold enough for me. mine moves alot of air so i dont think the air sits in there long enough to get hot. ive tested with a thermometer and gotten decent results
Junior Member
Joined: May 2010
Posts: 80
Likes: 0
From: Calgary AB
Year: 1991
Model: Cherokee
Engine: I6 HO
i thought half the point in throwing one of these "cold air" cone filters in was because it also increased your airflow. any truth in that? or is KN the way to go for cooling and flow rate?
Junior Member
Joined: Jun 2010
Posts: 45
Likes: 0
From: Huntington, IN
Year: 1987
Model: Wagoneer
Engine: 4.0
There is no such thing as a cold air cone filter. "Cold air" means air is being drawn in from somewhere outside the engine compartment. You could have a cold air ntake ans still use the stock filter. A cone filter can increase air flow in two ways. One, the filtering materials used can allow for more flow than a stock paper filter. Two, If the cone filter you chose has a greater surface area than the stock filter than it can pass air at a higher rate. In my opinion, the drop in K&N is the simple and effective way to upgrade your intake. Just slapping a cone filter in the engine compartment is not going to gain you much performance unless you seal it off from the engine compartment and make it a true cold air intake.
Junior Member
Joined: May 2010
Posts: 80
Likes: 0
From: Calgary AB
Year: 1991
Model: Cherokee
Engine: I6 HO
There is no such thing as a cold air cone filter. "Cold air" means air is being drawn in from somewhere outside the engine compartment. You could have a cold air ntake ans still use the stock filter. A cone filter can increase air flow in two ways. One, the filtering materials used can allow for more flow than a stock paper filter. Two, If the cone filter you chose has a greater surface area than the stock filter than it can pass air at a higher rate. In my opinion, the drop in K&N is the simple and effective way to upgrade your intake. Just slapping a cone filter in the engine compartment is not going to gain you much performance unless you seal it off from the engine compartment and make it a true cold air intake.




