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COLD AIR INTAKE

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#21 ·
Pics?

B's Jeep said:
Just finished installing an AEM CAI on my '08. Took a couple of hours only because one of the hose clamps is awkward to get at otherwise pretty easy install. Sounds quite aggressive on acceleration now.
The AEM is aluminum with mandrel bends which one probably cannot do at home....wonder what kind of difference that actually makes.
Probably know in a week or so if there is a noticeable mileage/performance increase.
Click to expand...
Let's have some pics please.
 
#22 ·
ok...I know I'll come across as stupid, but can anyone please tell me:

1. What's the purpose/benefits of the cold air intake?

2. how does it affect mpgs?

3. what's the effect on the lifetime powertrain warranty???

thanks!
 
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#23 ·
Answers

More air flow which will give a slight boost in horse power and or MPG's. It's kind of a trade off. In order to get the boost in HP you will need to really slam on the throttle, but to get better MPG, you will need to lay off of the throttle.
And as for the warranty, by law it will not void any warranty coverage.
 
#24 ·
Dont forget in the heat of summer a CAI becomes a HAI--& your intake is already next to a HOT engine block. For the extra half horse power you MAY Gain , I wouldnt consider it worth it.....Oh plus the added noise of induction roar!!
 
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#25 ·
Well it is the never ending debate, unless you have access to a dyno, it can't truly be proved either way. I myself like the added noise and no matter how hot it gets out side you still get more air flow.
 
#26 ·
Yep I agree! You'l get a higher flow of slightly thinner hotter air!!
 
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#27 ·
AEM

AEM Make a quality product, they have been in business since 1987. You are paying more for all the R&D that goes into making these than the actual filter/tube altho they make a high quality product for sure.

Also, the open design of the engine compartment allows for plenty of cold air flow once the stock plastic housings and whatnot for the other air box are removed.
I've noticed gains in HP especially when towing and better mpg with the CAI installed.
 
#28 ·
CAI on the cheap

Look in the knowledge base area for a post from my new HERO, JEEPHigh_11. I took his lead and put together an intake system for under $50 with the filter included. It took about 12 minutes to put it together and install.
Items needed:
(1 ) 2in dia. piece of grey electrical conduit, in a 45 degree elbow 2(with the "blown end")
(1) 2in PVC coupling with a 1/2" T. (for the breather hose install)
(1) 3" opening cone filter from K&N, AEM, Spectre, etc. (about $35)

Pull the stock air intake housing out. Insert the smaller end of the conduit into the intake- just up to the sensor - and tighten the clamp.

mount the new air filter onto the "blown end" of the conduit - and tighten clamp

depending on the bend you've used and the placement you are looking for, you will cut the conduit and install the PVC T with the smaller opening turned towards the vaccuum hose. Simply push the vh into the hole... the threading will hold it in place.

I read on another board that you need to clear the computer so that you get the most out of your modifications. disconnect the Neg. post on your battery for about an hour. (while you do the modification) then re-connect the battery. when you start driving - very slowly at first - the computer updates its calculations for air flow etc. Thus allowing you to get the most out of your install.

Jeep High 11 you are to be applauded for your ingenuity. This is classic. I'm hitting the new sp. plugs next. thanks for the idea.:notworthy:
 
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#29 ·
It is very plug and play. Hopefully, they sent you directions. Typically, you uninstall your stock air intake and reverse that. easy as that. You may need some simple hand tools, wrench, phillips screw driver, etc. Good luck
 
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#30 ·
Just did my K&N. Very easy only took me about 45 min to an hour. Plus from what i had seen they are the only ones with a heat shield and since that filter sits right next to the exhaust manifold you def want a heat shield in there. Cooler air means more power. plus i got it for $197 shipped which is way cheaper than the AEM. I like the black kit better than chrome as this looks like it could have come stock. it blends in so nice under the hood. here is a picture.

Image
 
#34 ·
Earthworm51 said:
I Have an AEM on my Patriot. I called them awhile back about why there wasn't a heatshield, they replied it did not need one do to where the filter is located.
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The filter is located right next to the exhaust manifold. Also K&N did a good job of being able to keep the little ram air tube in there to keep fresh air flowing to the filter. I like that as well. deff went into helping me make a choice into which kit to get.
 
#35 · (Edited)
I live in California where we have to have aftermarket parts like the AEM intake CARB approved due to the smog laws. I put mine on almost three years ago before it was CARB approved. I used to call them on a weekly basis, waiting for my CARB sticker. It took about 8 months due to the fact they have to go through the Government of CA. They do make other Air Intakes for many Vehicles that do come with a Heatshield, like they said due to where the filter is, there is plenty of air due to the opening where the filter is located. There is an Air intake called the WeaponR but it is not CARB approved. Nice here in California where the CA. Air Resources Board runs the show, otherwise I could use another intake or make my own. I did put the WeaponR Filter on my AEM as the WeaponR fiter has an open end and my be better than the AEM filter. You can also hook a Ram Air Kit to the Weapon R Filter if you want to get more air from the outside of your Patriot. THE K&N AIR INTAKE IS NOT CARB APPROVED IN CALIFORNIA FOR THE JEEP PATRIOT I agree there should be a Heatshield
 
#36 ·
Slater what are you racing? What air intake are you going to put on. You live in Iowa, what kind of smog laws do they have, just curious. California has some of the toughest smog laws in the Nation, so I'm limited on some things and others I run outlaw and will have to take off for smog check. Starting to see roadside smog checks where they pull you in and check your vehicle for illegal aftermarket non CARB approved parts. Also do a roadside smog check. I guess I better remove some things as I don't need a hefty fine.
 
#37 ·
Earthworm51 said:
Slater what are you racing? What air intake are you going to put on. You live in Iowa, what kind of smog laws do they have, just curious. California has some of the toughest smog laws in the Nation, so I'm limited on some things and others I run outlaw and will have to take off for smog check. Starting to see roadside smog checks where they pull you in and check your vehicle for illegal aftermarket non CARB approved parts. Also do a roadside smog check. I guess I better remove some things as I don't need a hefty fine.
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I have been autocrossing, road racing, and drag racing my entire life. I have not done a ton in the last 3 years because of all the family stuff going on (i have 3 sons ranging from 13 to 8). I have the K&N intake but have made my own customer ones as well as installed AEM, Steeda, and weapon r intakes on diff cars over the years. Luckly in Iowa i am wide open to what ever i want to do. there are no testing on cars are all. and you can put any aftermarket item you wants as long as it is safe and not loud enough the cops pull you over. I like K&N items. I have been using them for so many years i cannot remember when i started so i def look into those for my vehs but i also look at other brands to see if they have a better set up, price and look depending on what i am working on.
 
#39 ·
Earthworm51 said:
Thanks for the info, was curious about your racing and what if any smog laws you have or don't have. Your Lucky.
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Ya very lucky here. I lived in Vegas for a few years and had to do the sniffer test every year to get tags. I had an Off Road H pipe on my Mustang GT and had to put the stock one with cats on it to take it in . Then when i got the tags i just swapped it back. Kind of a pain but oh well it was worth it.
 
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