Hey all, any one use a HPS shortarm air intake? Or you guys stick with the k&n set up? Looking for suggestions

 

That thing takes hot air from under the hood. The stock airbox works at least as well and probably better, depending on whether your Jeep has the cutout to the grill in front of the airbox intake. It's a waste of money.

If you want a real cold air intake, you need a cowl intake like a Spectre or THOR that pulls air from outside the engine compartment. Even that isn't going to give you a real boost by itself, unless you combine it with other upgrades.

 

So both are a waste with out a cowl intake? Thanks for the input

 

This is the Spectre intake:



What you should notice is that there is a 3" hole in the firewall to draw in cold air from outside the engine bay. Cold air backs up against the windshield and creates a high pressure area inside the cowl. The big "pill" in the middle houses a Spectre reusable cone air filter. The THOR intake is similar, but it locates the filter inside the cowl itself.

I felt a pretty dramatic increase in throttle response when I installed that intake, but I have a 4.6L stroker with a bored throttle body, ceramic coated header and downpipe, high flow cat and stainless high flow exhaust. I'm really not sure what it would do for a stock 4.0L other than make it noisy. The cowl hole is right next to the intake for the ventilation system, so you get a LOT of engine noise in the cabin. Maybe someone with a stock motor can weigh in.

 

Well Im not really stock. I have the Spectre intake, banks torque tube headers, Jeepers and Creepers 62mm throttle body, high flow cat, Dynomax cat back exhaust.

But I did have the Spectre in before all other mods and I didnt really notice to much if at all HP increase just real good throttle response. But I wasn't looking for HP, I wanted it mostly to move where I was getting air from cause I do some water crossing up here in AK.

The noise in the cab is only loud when getting on the gas. Other then that it kinda has a strange sucking sound that you get used to after the first day.



Here is a vid of mine and how it sounds in the cab..

 

Stay stock or go cowl intake.