Did you search on this forum for this topic? There are a ton of threads for CAI with pros/cons etc.


https://www.google.com/url?q=http:/...KHaK9AxwQFggQMAY&client=internal-uds-cse&usg=AFQjCNGO2qTxKuurMeaJqLReK273PZNMvg


https://www.google.com/url?q=http:/...KHaK9AxwQFggUMAg&client=internal-uds-cse&usg=AFQjCNGChmGqNOSnCf_9_5WIwfd0D23n2A


https://www.google.com/url?q=http:/...KHaK9AxwQFggIMAI&client=internal-uds-cse&usg=AFQjCNEXSeBvg0bByRLxOdSUameFwRX0wQ

 

This just came out. Not sure how long it has been available. I have been looking for a while. Just decided to search again a few days ago. As long as you don't live in Cali you can get it shipped to you. Otherwise you can probably get it on Ebay.


http://www.knfilters.com/search/product.aspx?prod=77-1570ks

 

I've been on both sides of the equation. I purchased a K&N cold air intake for my old Subaru Impreza. The supplied kit installed without a hitch and it was noticably louder, which at the time, I equated with an improvement in performance. Looking back at things, I think it actually decreased my fuel economy, and didn't really do much for performance, either. For instance, I got a check engine light lit up permanently after installing it, and later research had me conclude that I had inadvertently disabled the mass airflow sensor, which would throw off the engine control module's fuel estimates. Even if more air was getting in, the engine ECU wouldn't know about it because the sensor was now gone. As far as I'm aware, the V6 engine doesn't use such a sensor in the Cherokee (it apparently uses some fancy estimation algorithm), but the I4 does. So it's possible that the V6 could see a minor improvement - but I really don't think it's worth $300 for the miniscule gain you'll get, if you do get it at all. Another thing they don't mention on the aftermarket websites is that the improved air flow from these kits still has to get through the throttle body to actually get into the engine - so even if the stars align and everything works right, the theoretical improvement will only affect the engine when it's going full out, full throttle. Since I'm not planning on drag racing my Latitude, it's not something I'm interested in anymore.

Cold Air Intake

 

Have you popped open your air filter box? Honestly, you will probably notice virtually no gain from this. The size of the filter and tubing is the same as the V6 engine. The V4 is already getting more than enough air than it can handle. Only improvement would be to use a blower at this point to actually force more air into the throttle body.

As well, if you live in a colder climate, those k&n filters are garbage. Once it gets cold out, the oil in the filter freezes allowing minimal to no air to pass though. Talk about a design flaw for marketing in the cooler climates. You have to be careful. The air filter is an easy upgrade, which is why many people do it, but has minimal to no gain except for money out of your pocket.

Automakers don't put horrible filters in that resist air flow, and I'm not sure why everyone thinks upgrading the intake will be such a great thing. They're designed for our engine. Just my 2 cents .

 

Have you popped open your air filter box? Honestly, you will probably notice virtually no gain from this. The size of the filter and tubing is the same as the V6 engine. The V4 is already getting more than enough air than it can handle.

Sorry but you lose credibility when you said "V4"

 

As others have noted, the only thing these "cold air" intakes do is make more noise. You will not make your Jeep faster or furiouser with one.

 

You can actually make a DIY version...it's something I've done on my vehicles for a long time. You remove the stock airbox and cut holes or Dremel out panels for more air flow. Then simply change the stock air filter for a K&N version replacement. Put it all back together and that's it...$45 cold air intake.

PS, make sure you swiss cheese the proper side of the air filter box...lol.

 

I remember backnin the good old days my 1976 4.9L v8 carburetted Ford with a round airfilter that had a small inlet prob 2.5in diameter.

Found one to demonstrate

This sat on top of the stock 1050cfm 4 barrel carby (twin 1 & 1/8 in primaries and twin 2 & 3/4 in mechanically operated secondaries)...

Flipping the lid of the airfilter upside down kept it sealed but opened it fron the tiny 2.5in intake to a 1in gap all the way around the 15in diameter fitler setup.

Found another pic to demonstrate

In this case the difference was extremely noticeable, bucket loads more power AND better fuel economy. It was actually a standard modification on tje Police edition.

Will changing intake setup on a modern computer controlled fuel injected vehicle? All testing I have seen so far says no.

Sent from my SM-G900I using Tapatalk

 

^ No. Intakes on modern vehicles are just for show and noise. The MAF will compensate for airflow to get the optimal a/f ratio anyway. If you think that a $30 filter will give you more power, you should probably consider why the factory didn't just use that magic bullet from the get go.

 

A good reason to switch to a K&N style filter is the ease of a quick cleaning and re-oiling. Never having to buy another air filter...they get gunked up quick, especially in dusty climates like the Southwest.

 

Somebody show me before and after dyno tests with a 'cold air intake', and then I might be a believer. Otherwise, it's just marketing hot air.