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Thread: Stealth CAI--What to expect and what NOT to do. Reply to Thread
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Topic Review (Newest First)
10-12-2015 09:30 AM
07Zx3Focus This weekend i took my setup apart to clean it, so i thought i might as well take pictures of what i did. I took a square plant box, cut 2 of the lips off made a bracket, and bolted it to the car. It protects the filter from water and dirt really good. Sorry if the pictures are posted sideways, i dont know why my phone does that. Attachment 146505Attachment 146513Attachment 146521Attachment 146529Attachment 146537
09-01-2015 04:58 PM
sailor Fairly trustworthy, I've "tested" it by pressing the reset button on the end to see if it returns to the same reading after driving a bit. One way to make sure it isn't stuck.

This type gauge is quite common on large trucks (also tractors, large power equipment of all kinds), familiar with it from them.
08-31-2015 12:19 PM
T 980
Originally Posted by sailor View Post
J/Y parts to save your stock from damage sounds good, fuel economy would only be helped if your current filter is excessively restricted IMHO.
Awesome. Thank you. The only other question I have is can that air flow gauge be trusted? I've read on here a few times that it can't. If it says good then I won't do this mod at the moment.
08-31-2015 06:52 AM
sailor J/Y parts to save your stock from damage sounds good, fuel economy would only be helped if your current filter is excessively restricted IMHO.
08-30-2015 09:21 PM
T 980 I'm looking to do this in a couple weeks (waiting for payday). I had a couple of questions that may save me money or some hassle. Plus the website is down so I can't look up the original instructions.

I have about 150k miles on my car and I really don't want to spend money for the same restrictive air filter when I can do something like this.

Should I go down to the wrecking yard and build this intake from the parts of a dead car? I would rather do that than possibly messing up on my original intake and ruin something. I've read that website a few times but I don't remember if this mod was destructive or just a matter of unbolting and taking things apart.

The goal with my car (mod-wise) is just to possibly improving gas mileage, not so much getting horsepower out of my car, even though it's always welcome. Will this improve my gas mileage by any significant number or at least anything noticeable?

Thanks in advance!
08-03-2014 03:38 PM
CorgiDude Just performed this mod today! I am quite pleased with the results. I disconnected the negative battery cable while I was working, and reconnected it when I was ready to fire her up.

I just crawled under my car and secured the cone filter to the MAF tube after I had yanked the old factory element off.

The car was a little hesitant to start the first few cold starts, but now she seems to be running smooth with no Check Engine light. :)

I can't feel much of a difference personally, but just for looking at how filthy the factory element was and how much better the engine sounds, I am pleased with the results.
09-14-2013 08:54 AM
DerbyCityGinger Got it on last night! I always have trouble with those black screws that you have to pry out but i just pulled the fender liner back enough not to have to worry about them.

Since I didn't have the stock MAF tube and resonator on the car to begin with all I had to do was get that old airbox out. Two of the bolts were so rusted I couldn't really turn them. Solved the problem by yanking down on it hard enough to break the airbox off at the pastic held in by the bolts. It's a little unprofressional and not very clean looking but you gotta do what you gotta do.

The K&N RX-4120 filter that BlazingCopper_ZX3 reccommended on his website (see link in the OP) worked perfectly. I attached it to the stock MAF tube I got from _fifth_ using some of the filter oil (it wasn't gonna be hard to fit without it but it is suggested), screwed my old MAF sensor into it and started to bolt it onto the car with the 1/2" bolt. This is the only part that may not be done right and will have to be fixed sometime down the road. The screw didn't go into the hole all the way. I checked to make sure it was the right spot (it was) and tried again. There could be rust or debris in there but its good enough for now.

Bolted the resonator with hydrocarbon trap onto the MAF tube. The TB boot was already attached to the resonator. If anyone is going to do this mod, do the opposite and attach it to the TB first. It took a while to get it on the TB properly but eventually I just broke out the filter oil, lubed it up and twisted it on there. Got the other side on the resonator and tightened the clamps. I'm not sure exactly what it is but theres some hose or valve or something that goes into the boot.

Then I took the air dam that I melted the cracks back together (practice for the bumper cover) and started to bolt it to the front holes in the bumper, then moving towards the sides and finally the driver side fender liner (the passenger side is cut there, but i did just get a new one to put on there. Whats awesome about the air dam being on there is that since its screwed into the bumper cover, its straightened the bent and cracked parts of the bumper cover and makes it look noticeably better.

I put the drivers side tire back on and was going to replace the cut fender liner, but the car had enough modding for the night and the lugs wouldn't come off with the tire iron. Need to have someone with an impact gun help me out.

Turned on the car and it idles about the same as the old SRI, haven't taken it for a test drive yet.

EDIT: Just did the test run to take some things back to my house. I can't really tell if it has better peformance than the old shoddy custom short ram but I do love it for the simple reason of being able to hear my engine instead of WHOOOOOOOOOOOOOOOOOOOOOSH from air being sucked into the SRI. It feels a little quicker and crisper but I'm not sure if that's real or just my imagination.
08-23-2013 10:08 AM
BlazingCopper_ZX3 Yes, any lubricant will work to get the filter over the MAF tube, as I've stated countless times it will take some effort to get a 3" filter on a 3 1/2" MAF tube though.
They sell black duct tape for your broken splash guard, just say'n.
08-22-2013 10:51 PM
DerbyCityGinger I'm considering this. I'm trying to replace this custom pipe/spectre filter SRI combo some (insert expletive here) put on the car before I bought it. I'm calling him a (insert expletive here) because me and another member discovered a week or two ago that whoever did it put the MAF sensor in backward and left an extra hole in the pipe for some reason. Also, he left the actual air filter part on the car. *facepalm*

It's fixed now but I've bought a stock intake complete with the airbox. Many people tell me that the airbox part is terrible for the car. This seems to be a good way to get rid of that custom pipe (looks to be leftover from an eBay turbo kit), use half of that stock intake, retain a stock sleeper look, and get a performance boost.

The main problem is that I don't have an air dam/splash shield on the car. Grabbed a broken one at a junkyard and I'm going to try to melt the cracks back together. My front bumper cover is also damaged but I believe it won't be a problem. Now I just need to find a suitable filter. Thinking the 3" ID Green Filter with the pre filter. Also considering a U pipe or elbow pipe for more splash protection. As for lubing the filter when putting it on, would filter oil work?

TL;DR: Previous owner iz dumb, considering stealth CAI, complaining about hurdles.
08-16-2013 11:06 AM
BlazingCopper_ZX3 Wow! Nice to see this mod is still being considered.

Dam "orangePeel" that's a big filter! You must have gotten the 6" long one.

I still have mine installed, going on 8 years and 103,000 miles now! I clean and re-oil it every 5000 miles when I change the oil. Still the best thing I've done.

Though I love this car I'm thinking of selling it to get a 2014 Fusion, my wife doesn't like it. She says it's too loud and too small.

Here is a list of mod I've done:

Stealth CAI
Custom Magnaflow cat-back exhaust
Full SVT suspension
New rear sub-frame member with easily adjustable camber
17" SVT EAP wheels
SVT center console
SVT leather shift boot
Ford Racing Strut tower brace
Ford Racing Short throw shifter
Ford factory mid wing spoiler
Sony Xplode Premium sound system, 6 disk changer, speakers and sub woofer
Tinted windows all around
Fog light switch Mod
Clear side marker lights
LED door locks
Cup holder LED's
Silver tint front turn signal bulbs

The "How To's" may also list the door lock LED and fog light switch mod but if not I'm sure there is a link on the "Stealth CAI" page for it.

Glade you all enjoy Mod'n you cars.
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