i am thinking about to swap a new age STI engine, tanny, ecu, suspensions in to my GC82.5 RS will they fit???
do i have to mod any part of the GC8 to be able to fit all of the stuff i list out...

please help me out

 

Well, to answer your question regarding fitment, Yes it will fit physically, but there is a lot more to it than that. The R180 rear end would require some work or you could just use the R160. Now the real work begins with the wiring. Do you have any experience with automotive wiring or understand wiring schematics? This isn't just a plug and play affair. Take it from me, I've done over 15 USDM WRX Conversions. If you have any more questions let me know.

-Adam
adam@i-speed.us

 

can i just use the R180 with the STI drive shaft on the 2.5 RS
and i thought if i have the whole harness i can just put it through the hole and plug in the STI ECU!! correct if i am wrong

thx

 

Sorry, it isn't that easy. If it were, I wouldn't have much business The wiring alone takes about 20 hrs and that's for me without using shematics or any kind of labeling. After doing as many as I have, I don't need to do what's required if you're doing your first one. As for just throwing in the R180, it doesn't work that way. If it did, I and counless others would have them. For one the R180 is wider, WRX axles are also wider than all other imprezas. And secondly, the splines are different on the STi, you would also need to swap in the rear hubs along with the Brembo's. Then, you run into the problem of the axles being a little long. So, this is a bigger project than you think.

Honestly, from the questions you are asking, you have no idea what it takes to do GC8/WRX Conversion. I suggest you do some research on the forums and check out our website for more info. www.i-speedusa.com

-Adam
adam@i-speed.us

 

Thanks Alex, that's pretty much what I was trying to explain. Fortunately, you stated it in a simple way.

-Adam