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Old 12-09-2014, 11:10 PM   #1
crazycanasian
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Member#: 129554
Join Date: Oct 2006
Location: Orlando, FL
Vehicle:
03 WRX
WRB

Default 2003 WRX Transmission Options?

Hi Nasioc,

I am hoping to find some guidance here as I am stuck without a clue of how I should proceed in my current predicament.

Currently, I have a 2003 WRX that is doing ~280hp to the wheels and has ~140k miles.

Last year I had an issue with the TOB and had to have the entire clutch replaced. While the mechanic was replacing the clutch, he mentioned that the input shaft was showing odd wear spots (at the time, I did not realize I was able to install the TSK Snout Repair kit). The mechanic machined down the wear spot and reinstalled the transmission.

Fast forward to today, I am talking to shops to have the TSK Snout Kit installed. And I am beginning to wonder if reinstalling my original transmission is the best idea since it has already 140k on it, and 2002/03 transmission model years have a reputation for being the weakest. This being said- I do not plan on surpassing 300hp to the wheels.

Semi-locally, I am able to source a JDM STI V3/4 Transmission or a 05 WRX transmission. I know the JDM trans will require a different rear diff- but in the long run, am I setting myself up for disaster trying to source replacement parts for an older/JDM transmission?

On the other hand, is the 05 WRX transmission worth the "upgrade" compared to the 03 transmission?

Sorry for the long read, but any advice would be greatly appreciated!

Thanks all!

CrazyCanasian
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Old 12-10-2014, 07:44 AM   #2
Uncle Scotty
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is it problematic???

do you have reason to believe that it will fail suddenly???

it aint broke......don't do WHAT???

there are many of these out there that have 200k+ on them and no issues at all...

stop 'hearing things' about these transmissions....they are plenty good if they aren't ham fisted or launched improperly, regularly
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Old 12-10-2014, 10:16 AM   #3
dark hawk
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Location: Cedar Rapids, IA
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Besides price why not an sti 6-speed?
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Old 12-10-2014, 01:29 PM   #4
crazycanasian
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Member#: 129554
Join Date: Oct 2006
Location: Orlando, FL
Vehicle:
03 WRX
WRB

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Really it's just the price
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Old 12-12-2014, 07:41 PM   #5
thejaredhuang
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05 transmission isn't an upgrade, its the same exact thing. The Legacy GT 05-07 have thicker gears which are approximately the same as RA v6. http://flatironsrally.typepad.com/fa...-and-more.html

That or go 6spd or PPG if you're really concerned.
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