hey guys what is the most reliable and commonly used wrx sti ej20 ver 4,5,6?
sorry i just dont really understand the diffrence's in the motors... see still a scooby newby. and where is a good place to order these motors from? if i was going to do a swap. not that i can afford it or anything but just outta curiosity...?

and what all needs to be replaced on the 2004 2.5 rs to make one of these motors run properly? so like all and all how much money are you talkin... thanks for the info guys sorry again im just trying to learn a lil bit. thanks.

Gruppe-S has JDM STi v7 and v8. Basically, you will need a good mech that knows what he is doing. This will be a time consuming job. So be prepare to spend alot of money.

Also, you are posting in the wrong section. Not to mention that you double post in here and in conversion section. Please dont spread off topic messages to sections that the thread doesnt belong, thx.