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Old 09-14-2007, 03:33 PM   #1
InfamousDX
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Question How to put a 2007 usdm sti 6 speed into my 2003 WRX

Searched but to no avail. If it's somewhere, sorry for posting this.

So lemme lay it out simple. 2007 usdm sti 6 speed transmission. 2003 wrx. What will I need to complete this swap WHILST keeping the stock r160?

I only ask about these specific years because I read the 07 usdm sti rear diff is 3.54 just like WRX's now so this swap should be easier than in the past. Thanks all.
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Old 09-17-2007, 11:20 AM   #2
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just bumping this up in hopes for some insight.
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Old 09-17-2007, 11:30 AM   #3
AWDWRXLOVER
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is the 07 sti tanny the same as the 06? if so you will be able to keep your r160 if you drive a bugeye
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Old 09-17-2007, 08:14 PM   #4
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Did you do the swap? What do I need from the sti - tranny, linkage, shifter, clutch + flywheel setup... anything else?
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Old 09-18-2007, 05:29 AM   #5
AWDWRXLOVER
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Quote:
Originally Posted by InfamousDX View Post
Did you do the swap? What do I need from the sti - tranny, linkage, shifter, clutch + flywheel setup... anything else?
depends on which swap you do. i went full out. 5x114 hubs,r180, brembos front and rear etc. if you want to keep stock brakes you will need shorter drive shaft(auto), 04 sti axle front stubs w/ clips. there are several good sticky thread w/ links to other swpa threads that are very useful. read up and get a plan and budget before you start buying parts.

there are little things you will need to, fly wheel bolts for example, wrx has less than sti.
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Old 09-18-2007, 10:47 AM   #6
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I've been reading and I've successfully done an 04 sti into a wrx, but I thought the 07 was slightly different.

I plan on keeping the WRX rear brakes (have 2 pots w/kartboy adapters) and alerady have 04 sti brembo fronts with my factory WRX axles. I plan on keeping the r160 as well so i guess the auto DS is in order.
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Old 09-19-2007, 04:50 PM   #7
rjrutzky
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bookmarking this as I am also interested in this swap with the good 07 ratios. I can't imagine how much one will cost right now though
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Old 09-19-2007, 09:55 PM   #8
Jpizzzle
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Just wondering, how did the wiring harnesses match up? I know mine will be different being an 04 6 Speed but i don't know if i will have to hard wire it in...
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Old 10-16-2007, 07:05 PM   #9
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bump.
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Old 10-17-2007, 11:45 AM   #10
MrSlowbaru
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to the top, somewhere i heard that the 07 trannys are more of a drop in affair than the 06's were.

i want to confirm
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Old 10-17-2007, 11:06 PM   #11
speedracer500
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I have an 2007 sti limited tranny in my 02 WRX using stock R160 diff. Contact east coast swappers (http://eastcoastswappers.com/) (they did my install). There is a kit that they use to mate the drive shaft and axles to the tranny.
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Old 10-27-2007, 12:54 AM   #12
speedracer500
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bump.
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