Are there certain brands of after market parts that work better with focus'
After Market Parts
2081zx3
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cool cool, so im feelin like i wanna go with a shorty header setup to keep my stock cat until i can get a high flow cat. i wanna keep my emissions legal. like i mentioned i already have a magnaflow cat back echaust. would i see better sound/gains with a magnaflow header or can i mix and match without issues.
i also am gonna go with the focussport intake, it seems to be a good mix of a ram intake mixed with cold air from what i read in the sticky thread about bolt on performance, it seems to be an all around good intake for what im trying to do.
i read a few threads on how a throttle body increases low end, 65mm is what they seemed to be using. will this affect my computer or can i just bolt on and go?
i also am gonna go with the focussport intake, it seems to be a good mix of a ram intake mixed with cold air from what i read in the sticky thread about bolt on performance, it seems to be an all around good intake for what im trying to do.
i read a few threads on how a throttle body increases low end, 65mm is what they seemed to be using. will this affect my computer or can i just bolt on and go?
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65mm tb is bolt on and the throttle response is incredible
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65mm tb is a direct swap and go. no further modification required beyond changing out the stock one with the aftermarket. be sure to disconnect the battery for awhile so the ECU resets and can "learn" the new throttle body. you may have to adjust the idle screw to get the car to idle correctly
you can mix and match header and exhaust without any issues. however i wouldnt suggest a shorty header ever unless you plan on showing off your engine at car shows or something. they dont hardly give crap for power gains and and purely a waste of money other than looking cool.
if you are worried about passing emissions you can do one of a few things.
1. you can get a race header without a cat and get a tune to turn off the rear o2 sensor and pass the obdII port inspection. this is what i did and ive passed inspection 2 years in a row without a problem (this wont pass a sniffer test and might not pass a visual inspection if the inspector knows what they are looking for)
2. you can get a race header without a cat and make a o2 cheater to fool the ECU into thinking the cat is there and functioning properly. this wont pass a sniffer or visual inspecion either
3. you can do the complete SVT header swap. with this swap you will pass ANY inspection that can possibly be done without a problem in the world and the SVT header makes better gains over ANY other aftermarket header out there right now. for this swap you need to lay your hands on a SVT focus header, SVT focus flex pipe, SVT focus catalytic converter, SVT focus power steering line, and SVT focus dipstick tube.
the upside to the first two are that they will be cheaper, and easier. the downside to them is that you wont get as much of a power gain and you might not pass inspection depending on where you live.
the upside to the SVT swap is that you will get more power out of the swap and you will pass inspection no matter what unless you have an ACTUAL problem. the down side is that it can cost as much as $500 or more for everything you need to do the swap and you have to do some slight modification to make the SVT header fit the zetec head and make the flex pipe fit the zetec exhaust.
you can also get a little more power out of the SVT swap if you get rid of the cat and run an off road pipe or ORP. the only problem with this is passing emissions and it makes it a little louder.
what would i do if i could go back and do it all again? i would do the SVT header swap instead of my ebay brand 4-1 race header.
you can mix and match header and exhaust without any issues. however i wouldnt suggest a shorty header ever unless you plan on showing off your engine at car shows or something. they dont hardly give crap for power gains and and purely a waste of money other than looking cool.
if you are worried about passing emissions you can do one of a few things.
1. you can get a race header without a cat and get a tune to turn off the rear o2 sensor and pass the obdII port inspection. this is what i did and ive passed inspection 2 years in a row without a problem (this wont pass a sniffer test and might not pass a visual inspection if the inspector knows what they are looking for)
2. you can get a race header without a cat and make a o2 cheater to fool the ECU into thinking the cat is there and functioning properly. this wont pass a sniffer or visual inspecion either
3. you can do the complete SVT header swap. with this swap you will pass ANY inspection that can possibly be done without a problem in the world and the SVT header makes better gains over ANY other aftermarket header out there right now. for this swap you need to lay your hands on a SVT focus header, SVT focus flex pipe, SVT focus catalytic converter, SVT focus power steering line, and SVT focus dipstick tube.
the upside to the first two are that they will be cheaper, and easier. the downside to them is that you wont get as much of a power gain and you might not pass inspection depending on where you live.
the upside to the SVT swap is that you will get more power out of the swap and you will pass inspection no matter what unless you have an ACTUAL problem. the down side is that it can cost as much as $500 or more for everything you need to do the swap and you have to do some slight modification to make the SVT header fit the zetec head and make the flex pipe fit the zetec exhaust.
you can also get a little more power out of the SVT swap if you get rid of the cat and run an off road pipe or ORP. the only problem with this is passing emissions and it makes it a little louder.
what would i do if i could go back and do it all again? i would do the SVT header swap instead of my ebay brand 4-1 race header.
From what i had seen on line the aftermarket headers looked way more free flowing and better designed. But i guess a picture can be deceiving. If anything ill leave it stock, i dont wanna spend 500 for the svt swap.
would have been nice if ford could have made the two parts fit each motor easily.
would have been nice if ford could have made the two parts fit each motor easily.
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they do fit each other easily. you just have to slot them slightly. you can do this with a standard drill or dremel. and you CAN find the complete SVT swap for much much less than 500 if you are willing to be patient and buy it one part at a time. 500 is how much it usually goes for if you are the type of person who decides you want it and you want it now, just name your price. if you're lucky enough to find a wrecked SVT at a pull-a-part or u-pull-it you could get the entire swap for about 50 bucks
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1,060 Posts
Shorty headers, surprisingly, don't add anything up high, but they DO give you a few more ft/lbs of low end torque.
I got a ceramic coated JBA shorty for $100 shipped from a guy on FJ.
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Chase said stay away from EBAY brand products which I can understand due to them being so cheap. But I bought a long ram intake for $60 and all I can say is wow! That was the best 60 bucks I've spent on my car.
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I hope you bought one that preserves the stock MAFS housing diameter....
Well, naturally, it raises them. In fact, there were some issues with hood paint with some of the early shorties.arlenn said:
Getting a shorty that's ceramic coated helps, though, and you can always wrap it as well.
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Id suggest you do what i did. I bought a mac shorty header, sprayed it with header coating, wrapped it in header wrap and bought a magnaflow hfc, sprayed and wrapped it.
http://www.joeheckracing.com/store/show_by_tags/Ford+Focus?category=Parts
^^^MAC header.
I used autoanything for the hfc. it was cheaper when i bought it, but u can still get a really good price because autoanything offers discounts and free shipping al the time
http://www.joeheckracing.com/store/show_by_tags/Ford+Focus?category=Parts
^^^MAC header.
I used autoanything for the hfc. it was cheaper when i bought it, but u can still get a really good price because autoanything offers discounts and free shipping al the time
gee for 150$ new... its kinda tempting.
... wait a minute... no EGR port is there ... wait a minute... it connects below the collector? i don't remember what mine looks like.
yes ideally the SVT, but header + cat + power steering line + dipstick ...
... wait a minute... no EGR port is there ... wait a minute... it connects below the collector? i don't remember what mine looks like.
yes ideally the SVT, but header + cat + power steering line + dipstick ...
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If you order one of the modified SVT headers specifically designed to be transplanted into the stock Zetec, then it actually does include a bung welded in for the EGR pipe.
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Oooh, okay. Then yeah, the EGR bung is right below the collector, in the cat, but above the catalyzing element.
One further note on shorty headers -- there is a theory that shorty headers, which flow better than the stock exhaust mani, burn out your cat faster than otherwise, and so you should only run them with a HFC. I personally think it's horseshit, and the only reason to run a HFC is to take full advantage of the higher exhaust flow, and I don't believe that a shorty destroys your stock cat.
However, it IS out there, and is something to keep in mind. I'm sure someone who believes the theory will speak up to defend it. [idea]
One further note on shorty headers -- there is a theory that shorty headers, which flow better than the stock exhaust mani, burn out your cat faster than otherwise, and so you should only run them with a HFC. I personally think it's horseshit, and the only reason to run a HFC is to take full advantage of the higher exhaust flow, and I don't believe that a shorty destroys your stock cat.
However, it IS out there, and is something to keep in mind. I'm sure someone who believes the theory will speak up to defend it. [idea]
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why don't you guys just go with a cat delete and get 4-2-1 headers, and when you need it inspected swap em back?
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or better yet just avoid the hassle of stressing over inspection all together while making more power than with a shorty and just get a SVT swap.
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just the header from a SVT. well the header, dipstick tube, flex pipe, cat, and power steering line. it takes a little modification to pull a header directly off a SVT and stick it on a zetec but you can buy them already fabbed up and ready to bolt on from several different places including the buy sell trade area of this site.
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