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Old 01-09-2006, 12:01 PM   #1
My R2
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Default STI mods for XT

Okay as my luck would have it when I get ready to do mods the forum goes down.
Can someone let me know if my list is correct?

VF39
2004 ECU
STI IC
Fuel pump upgrade
Up pipe

Does anoyone know where I can buy these items at a good price? I have already checked i clubs and no one is selling right now, i don't mind buying new either. How much can I expect to spend? I am in the NOVA area too.

thanks in advance!!!!
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Old 01-09-2006, 12:16 PM   #2
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Old 01-09-2006, 12:18 PM   #3
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Old 01-09-2006, 12:27 PM   #4
SirWilliam
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Quote:
Originally Posted by My R2
Okay as my luck would have it when I get ready to do mods the forum goes down.
Can someone let me know if my list is correct?

VF39
2004 ECU
STI IC
Fuel pump upgrade
Up pipe

Does anoyone know where I can buy these items at a good price? I have already checked i clubs and no one is selling right now, i don't mind buying new either. How much can I expect to spend? I am in the NOVA area too.

thanks in advance!!!!

Yeah your list is good but I would add a 3" catted DP(helix, daddys, and COBB make good ones) and an STi OEM axleback to that list as well.

Don't forget all the misc parts, washers, and gaskets.
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Old 01-10-2006, 07:45 AM   #5
My R2
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Thanks, is it necessary to get the DP and the catback or can I make do with the XT exhaust system? What gaskets are you referring to?

Thanks again for your help!!!
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Old 01-10-2006, 09:52 AM   #6
SirWilliam
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Quote:
Originally Posted by My R2
Thanks, is it necessary to get the DP and the catback or can I make do with the XT exhaust system? What gaskets are you referring to?

Thanks again for your help!!!
I think you might be able to get by w/ the forester exhaust but will be more restrictive (making less power) but at least swap in a catless uppipe. I would recommend just upgrading the DP b/c you will end up doing it anyways.
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Old 01-10-2006, 12:12 PM   #7
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Quote:
Originally Posted by SirWilliam
I think you might be able to get by w/ the forester exhaust but will be more restrictive (making less power) but at least swap in a catless uppipe. I would recommend just upgrading the DP b/c you will end up doing it anyways.
and it's best to do it at the same time since you have to take the DP off to put in the UP...
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Old 01-10-2006, 12:20 PM   #8
SirWilliam
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Quote:
Originally Posted by DanzBorin
and it's best to do it at the same time since you have to take the DP off to put in the UP...
Thanks Dan! I forgot to mention that as well. Yeah, it is better to do it all at once than to take everything out again.
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Old 01-10-2006, 12:31 PM   #9
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I need to put out some kind of welcome to nasioc my name is Rob memo...

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Old 01-10-2006, 12:32 PM   #10
SirWilliam
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Quote:
Originally Posted by DanzBorin
I need to put out some kind of welcome to nasioc my name is Rob memo...

OOPS just always figured it was Dan.
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Old 01-10-2006, 05:15 PM   #11
My R2
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Thanks guys! I guess I will have to safe up some more money

Honey...I uhh have something to ask....wait put that rolling pin down....
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Old 01-11-2006, 09:48 AM   #12
My R2
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STI ECU check

Thanks for the link you guys are GREAT!!!!

I do have a question about emissions, will I still be able to pass with the new exhaust system?
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Old 01-11-2006, 10:28 AM   #13
SirWilliam
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Quote:
Originally Posted by My R2
STI ECU check

Thanks for the link you guys are GREAT!!!!

I do have a question about emissions, will I still be able to pass with the new exhaust system?
If you have a catless uppipe, DP w/ a high flow cat and running the STi ECU; you will pass emissions w/ flying colors.
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Old 01-13-2006, 06:53 AM   #14
My R2
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THANKS! Well, I guess this is my new forester home since the new SF.com bans hotmail accounts. So you members going back don't forget to check this site from time to time as I KNOW I will have a few more ??? regarding the XT --> STI

Thanks again for all of your help....
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Old 01-13-2006, 07:52 AM   #15
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Keep us 2005 guys updated you stinkin' bastage
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Old 01-13-2006, 08:24 AM   #16
My R2
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Will do.....
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Old 01-13-2006, 08:25 AM   #17
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Don't forget intercooler hoses for the STI intercooler..!!! I hope th eIC came with the BPV if not you'll need that the gasket and bolts to bolt it on the IC.




Quote:
Originally Posted by My R2
Okay as my luck would have it when I get ready to do mods the forum goes down.
Can someone let me know if my list is correct?

VF39
2004 ECU
STI IC
Fuel pump upgrade
Up pipe

Does anoyone know where I can buy these items at a good price? I have already checked i clubs and no one is selling right now, i don't mind buying new either. How much can I expect to spend? I am in the NOVA area too.

thanks in advance!!!!
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Old 01-13-2006, 12:17 PM   #18
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if you're going to do all that, I would put an exhaust on the car too. you can fit a wrx/sti exhast on the FXT (scoobymods hanger mod). I am running a Invidia G200 exhaust from an STi on mine. I love having an exhast on the FXT. the stock one is very restrictive.
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Old 01-17-2006, 08:28 AM   #19
My R2
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^^ I thought the STI exhaust was too short for a XT?

The only part I have, so far is the 2004 STI ECU. I plan on getting the other parts over the winter, next is either a turbo or IC.

? about the turbo
I have done some searching about VF39 versus VF34. I really wanna a plug and play deal and I know the VF39 would be the best best not to mention cheaper. Will the stock ECU (STI) run a VF34? If tuning is mandatory what do you XT guys run? And for the XT guys with either turbos what are your numbers?

? about the IC
Should I settle for a stock STI IC or should I just go aftermarket?

Thanks again guys. If you don't mind I will just keep adding to this thread as I progress
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Old 01-17-2006, 09:11 AM   #20
DanzBorin
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you can get a STi axleback to work...

and you cannot safely run a 34 on a stock STi ECU...
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Old 01-17-2006, 09:20 AM   #21
SirWilliam
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Quote:
Originally Posted by DanzBorin
you can get a STi axleback to work...

and you cannot safely run a 34 on a stock STi ECU...
Yes, you can get a stock STi axleback to work...I have one

Hmm...I heard you can use the VF34 w/ an STi ECU.

I probably have ~240-250WHP and ~300-310fllbs at the wheels...that is probably ~340HP and ~380ftlbs at the crank.
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Old 01-17-2006, 09:33 AM   #22
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Quote:
Originally Posted by SirWilliam
Yes, you can get a stock STi axleback to work...I have one

Hmm...I heard you can use the VF34 w/ an STi ECU.

I probably have ~240-250WHP and ~300-310fllbs at the wheels...that is probably ~340HP and ~380ftlbs at the crank.
you can use it, but I wouldn't say safely...
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Old 01-17-2006, 10:29 AM   #23
SirWilliam
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Quote:
Originally Posted by DanzBorin
you can use it, but I wouldn't say safely...
Yeah, probably wouldn't be as safe as running a VF39 which is what the ECU was designed to use.
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Old 01-17-2006, 12:01 PM   #24
ne0stai2dust
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Quote:
Originally Posted by My R2
^^ I thought the STI exhaust was too short for a XT?
it is a tad short. about 3 inches I think. but you can lower it with the scoobymods hanger modification. thats what I did put to my g200 exhaust on my FXT.
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Old 01-17-2006, 12:10 PM   #25
My R2
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axleback = catback?

So I can get a stock STI catback to work on the XT by lowering the exhaust 3 inches? Wow, I did not know that! I guess the hanger mod is what is allowing you to hang the exhaut lower? No issues from you guys with the low height of exhaust?

Would a simple reflash allow the ECU to work with the VF34? Or are we taking something more major.

Well, I may have to pick up a used STI exhaust. Will any STI year work for my 04 XT?

Thanks again guys....

P.S.
I am looking to be above 300 awhp by the end. Is there anything I may be overlooking to get me to this point?
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