hey guys im am looking to upgrade my stock ecu to an after market ecu for my 2004 wrx. Not really sure what i meant to be looking at but if use guys have any helpful information, website it would be much appriciated. thanks

For me its a toss up between the gallow 12 and the gallow 24

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hahaha

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00 forester GT. 90 rodeo turbo dualcab

All depends on how much you want to spend and what features you want.

I use a haltech e8. Try looking up link, autronic, power fc(apexi), viper, motec.

I would say Link G4 or Autronic PNP

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Its just the internet dude, its not real.
F.B. Racing
01 WRX (STI badged)
2010 XR5 Focus
06 Impreza Hatch 2.0i

Why?
Do you need logging? wideband lambda? telemetry? antilag? rotational idle?
You need to ask yourself why you want to upgrade your ECU, and what you're trying to achieve.
If it's just a matter of wanting to modify your car, and needing a retune to suit the modifications, then an ecu remap such as Verso or ecutek will be fine.
Prices vary from $1000 through to $5000+
ECU upgrade just for the sake of ecu upgrade is crazy talk.

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Signarape!

ASG
VERSO TUNE
$990 drive in drive out

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Chinese Mexican
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we have a special on in the Vendor's section for Autronic PNP SM4 for $2349 from $2995, pretty awesome deal and its definately one of the best ECU's for the wrx/sti. Otherwise we sell Link G4 for $1980.

cheers
Dan
0400553383

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http://www.carmodsaustralia.com.au

more information on your needs, mattmy99 has made this clear for you. You say you want to upgrade the ecu, but you don't know what your meant to be looking at

Quite surprised that no one has told you to just do a search, this question has been asked so many times already

If you can't find the information or still unsure, then tell us why you want to upgrade the ecu for and people here will tell you and point you to the right direction.

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98 gf8 Rip

Don't listen to these guys with their silly crap that doesn't actually extract any power.

You need either:

http://www.cosworth.com/Default.aspx?id=1098026

or if you have some more development time...

http://prodrive.com/level4.html?id=29

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[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR]