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Old 03-31-2006, 11:40 AM   #1
Scooby Newbie
Member#: 92132
Join Date: Jul 2005
Chapter/Region: South East
Location: Charlotte, NC
1997 OBS GFA

Default 03 WRX drivetrain ---> 97 OBS

Yep this here is the first subaru I have ever owned and for the past few weeks I have been working on improving it dramatically. A couple months ago, my weakened stock 2.2L drivetrain was starting to seem kind of rough after 150,000 miles. So I decided to do what any subaru owner with any sense of logic would do, I found a totalled 2003 WRX sedan. Now the entire drivetrain is in. The engine, trans, rear, all four brakes, hubs and axles that used to belong to the WRX are now completely installed into the 97 OBS. I had to switch out the pedal box, the hydraulic clutch reservior. And right now I am working on attaching the WRX dash crossbar so the WRX dash, cluster, and console will go in. I'm not running into many snags. The pedal box and the dash crossbar just needed a couple holes drilled into them. I also had to drill holes in the dash for the WRX heater box. Now I'm kind of trying to figure out what i should do about door panels, . but I might just cut them to clear the new dash until I can figure out how to install some different kind of door panel. also Im not sure if I'll have to switch out the fuel pump. Like I said, This is the very first modification I have ever even made to a subaru. And as soon as I can get this dash crossbar mounted, I can install the steering column, and then it'll be done. I don't even really have any idea how this swap is going to turn out. I've never even driven a WRX. Hopefully it will be done soon. I'll get pictures up soon. Let me know what you think of this swap.
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Old 03-31-2006, 05:52 PM   #2
Scooby Specialist
Member#: 90353
Join Date: Jul 2005
Chapter/Region: NWIC
Location: Corvallis OR
Sold '95 22T Impreza
'99 EJ205 L, AE86 GVR4


sounds like your well on your way to a sucessfull swap. good job gettin after it. you will want the fuel pump, and since you have it its not too hard to put in.

have you done all the wiring? there will be some body wiring you may have to adapt to the wrx ECU. your car will be way faster than you think ride in a stock wrx, then subtract 300lb.
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Old 03-31-2006, 08:13 PM   #3
Scooby Specialist
Member#: 91407
Join Date: Jul 2005
Chapter/Region: South East
Location: Pitkin County, COLORADO
Ver. 2 WRX STi wagon
BRetty green



"Have you modded your car?"
"Yea. I've done one little thing."
"Yea? What's that?"
"Oh, just a complete WRX drivetrain swap."

That's sweet.
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Old 04-01-2006, 08:45 AM   #4
Scooby Specialist
Member#: 62629
Join Date: May 2004
Chapter/Region: MAIC
Location: Richmond,VA
1996 OBS in Green
2.5 N/A w/ full exhaust


That's impressive... I think I'll mod my OBS hmm... lets throw in a WRX drivetrain and see if that improves the power...

I'd like to see pics to the dash swap.
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Old 04-01-2006, 12:38 PM   #5
Scooby Newbie
Member#: 57446
Join Date: Mar 2004
Chapter/Region: Tri-State
Location: Pa
2002 WRX
97 OBS EJ20/ E30 M3


yeah, my OBS is in need of a drivetrain swap as well. I have the WRX suspension and brakes on but I could use a bit more power...
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Old 09-06-2012, 12:30 PM   #6
Scooby Newbie
Member#: 302064
Join Date: Nov 2011
Chapter/Region: NWIC
Location: Washington State
1997 Impreza OBS

Default sounds sweet!

what year is your OBS??? I have a 97 2.2 OBS and I am wish I could find a salvagable wrx for cheap, but... I live in Seattle area and finding that is like a royal rumble, everyone is looking for it too!! how much did you pay for everything? I want to lift my OBS too though, using the forester shock/struts and throw some 215/75/15 mud terrains under it, i have seen it. That and a WRX powertrain, oh man, it would be bad ass!!

Lets see some pics!
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