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Discussion Starter #1
Finally got around to making a homemade CAI without any CEL or Wrench Lights. Works great and sounds awesome, and noticed an immediate power increase!

*EDIT* THANKS TO USER DUHAMEL FOR THE IDEA!!!!


Step 1:
I contacted my local junkyard and tried finding a 02-07 duratec MAF tube from one of the older foci. They didnt have any, but assured me that either a taurus MAF or Lincoln LS MAF would work, went down there and got the MAF and Tube from an 04 Lincoln LS for $5.

04 Lincoln LS, MAF and MAF Tube:


Step 2:
Cut the MAF Tube away from the top of the air filter lid


Step 3:
Sanded the edges of the cut MAF tube


Step 4:
Removed the MAF from the Focus and inserted it in the cut Lincoln tube


Step 5:
I Attached the Cold Air Intake





Before:


After:


and before you say anything, yes those are zip ties, and no they are not permanent. My local lowe's got destroyed in a tornando and i cant exactly run to town and get something better lol the new one opens in a few weeks and ill get something better to secure it with and post some redeemer pics up.

Overall it took about twenty mintues or so and was very easy. I let my car run for about fifteen minutes before i secured everything just to make sure i was in the clear, after the fifteen mintues i zip tied everything and rode down the road for about twenty miles and no lights whatsoever and like i mentioned, it sounded amazing and i notcied and immediate power gain, nothing huge, but i could definentily notice a difference. Gas mileage it undetermined so far

Lemme know what you guys think, and try to keep the zip tie heckling to a minimum [;)]
 

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Discussion Starter #3
yeah, and it came with the MAF sensor still in the tube haha i guess the guy at the junkyard didnt realize it, so if anyone needs one, lemme know
 

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Cool. Glad to see that you got something figured out
 

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I made one also, its kinda scary doing a mod like this with the only MAF housing you have. If you dont get it right you cant drive it for a while.

IMO as long as you use the stock MAF housing your golden.

I used a 2.5" tube off e-bay, 3"-2.5 coupler from the TB to the 2.5" tube. Cut the stock MAF housing down to its smaller section which connects to the 2.5" tube with just a 2.5-2.5" coupler. Then the spectra filter is 4" with a few spacer got it to fit on the other end of the MAF housing.
 

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Did you ever end up taking the zip ties off? Does anybody have experience in how to properly mount one of these things? I'm not trying to use zip ties if I don't have too...
 

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I don't "show" my car so zip ties worked just fine, and have held up for over a year. Don't know if this helps but zip ties will hold up. I do see the point though cause it would look better with a permanent mount.
 

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I don't "show" my car so zip ties worked just fine, and have held up for over a year. Don't know if this helps but zip ties will hold up. I do see the point though cause it would look better with a permanent mount.
Word. You bring a valid point, I don't want to show mine either I suppose since I still haven't fixed it from a fender bender and don't plan on it... do you mind posting pics of where you zip tied it? I'm trying to get this mass airflow tube from a 96 taurus sometime next week... hoping for the best and that it fits. Needless to say I can't stop popping the hood and thinking about where it might go and how I'd think about running a CAI. Only thing I can't figure out is how to mount it. I'm kinda thinking about it come out like this one http://www.focusfanatics.com/forum/showthread.php?t=200566 but I can't see how he mounts the darn thing!!! Or (not to discredit you) where and how yours finishes, does it just go straight down?? All help would be greatly appreciated! Just so antsy and can't wait to get these parts in! I'll try and do a write up of the whole thing.
 

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Honestly, I'm 300 miles from my Focus and am on a work trip and am driving a rental. I can snap a pic of mine and show you how I routed my zip ties. However, I went the SRI route, I didn't make the down tube. Too many puddles around, especially during the spring thaw, so to be safe I stuck with the SRI.

My reason for going the "homemade" route was pretty freakin easy. The Steeda SRI would've cost me over $300, but my homemade one cost me less than $40 :)
 

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Cool cool, thanks man. Guess I'll just start with the short ram and maybe buy a tube at a time until I'm happy with it. I couldn't agree more with you on the budget though! Why pay extra when it does the same thing. I'll take pics and post it once I'm done in a few weeks.
 

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U can buy from summit a maf adapter for $30 and just buy some pipes I made one for my old 08 with no cel cause the adapter comes with 3 different size velocity stacks best mod for the money ;)
 

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U can buy from summit a maf adapter for $30 and just buy some pipes I made one for my old 08 with no cel cause the adapter comes with 3 different size velocity stacks best mod for the money ;)
I did the exact same thing, this what I bought:

http://www.spectreperformance.com/index.php/aluminum-tube-3-o-d-maf-adapter-kit.html

and

http://www.spectreperformance.com/index.php/hprtm-air-filter-3-cone-8-9-tall-blue.html

it works great and sound good, the only thing I want to do is some kind of metal plate/sheet between the filter and the maf to keep the air cool.
 

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I bought some piping from spectre and made a cai I didn't had fog light so I got the driver side fog light bezel and all the air would pass directly to the cai


I did the exact same thing, this what I bought:

http://www.spectreperformance.com/index.php/aluminum-tube-3-o-d-maf-adapter-kit.html

and

http://www.spectreperformance.com/index.php/hprtm-air-filter-3-cone-8-9-tall-blue.html

it works great and sound good, the only thing I want to do is some kind of metal plate/sheet between the filter and the maf to keep the air cool.
 
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