+1 if there is even a small chance you are going to mod the car.

 

Car is already modded that's how he blew his tranny. I think op is at 350 to the wheels.

 

Vf39
Catless dp
Trust Pe ti r exhaust (USA length)
Turbo inlet
Up pipe.
Sti tmic
Aip pump delete
Walbro 225

I've seen 09 gears hold 400 hp cars with 0 problems and the guy I know did a lot of track driving

 

^ That car did not have 400hp.. if they told you that, they got you good

 

Close to...
What hp would you say the 09 gear set is good til? It's a much stronger case, gears, etc.

 

couldnt tell ya that

 

I don't think the 08+ newer 5 spds are supposedly to be a lot stronger but a little... I have heard typically 350 whp is what they max out at but the wtq and how driven is the main factor as well

 

I think that's a good option for me to do now as I am going to push 330 hp max.
I don't need a ton of power, thinking more about how For the time being I just need a dd.
Eventually will sell and buy an sti. But for now. I just want a dd and a fun car for some great mountain driving, some fast roads, and a track day any once in a while.

 

Guys thanks for all the input!!! I have officially dropped the car off at fw for my 09 gear set. Thanks again. I appreciate it greatly, and learned a lot through this thread. I hope anyone looking for advice can read this and have a better understanding and make a good choice that fits their needs!
Will

 

One more thing for anyone considering a 6MT swap: I've read that the 2004-2005 STi sometimes had synchro wear issues as they get up there in mileage, which Subaru improved or fixed for 2006+. (USDM models, no idea what the corresponding JDM models are.) So I'd definitely pay more for a 2006+ 6MT.

The 2004-2005 6MT holds power perfectly well, it's just that the synchros will wear our sooner from normal shifting, and you're starting with a used tranny with some miles on it.

On the flip side the tranny is already out of the car so you can probably get the synchros upgraded pretty easily/cheaply. If the 2004-2005 tranny is higher mileage I'd do that before installing it.

There is also the torque split difference (35:65 for 2004-2005 vs 41:59 for 2006+), the mechanical LSD difference (2006+ has some pure mechanical LSD functionality in addition to DCCD), and the newer ones (2007+ I think?) do not have a tranny fluid pump. This is to say nothing of gearing differences.

I'm *not* an expert and I've never done a swap. I'm just repeating things I've read in case anyone finds them useful.

 

Great addition! I'll give you guys a review of the 09 gear set once I have it

 

09 wrx gear set.

Been driving it for a few weeks now. Shirts very smooth, I picked up a twm weight shift **** (m1 Abraham's 460g) so that probably helps haha. I haven't noticed much change from the 06 one...
It's cost effective if you can't do the sti swap yourself, it's also though to source everything. I like the trans a lot... I put faith into it praying it won't blow. I'm confident it won't though
Overall I like it!

 

What kind of dyno are you making 350? Gotta remember "400" on a dyno jet could be close to 325-350 on a mustang dyno. Just be easy on your car I'm sure you don't wanna replace that clutch or tranny again anytime soon

 

Mustang dyno. I'm at 350 tq not hp.
I don't think any power mods are comin soon,
My current list is
Coilovers
Racing seats
Head unit.
Than some appearance stuff like side skirts

 

Good call, 350 wtq is prolly the max you wanna push on the 5 spd especially if its your DD