I have a 98 Legacy with a 4-cam EJ25 through 5MT, and am looking for another transmission.

I am under the impression that the WRX trannies will fit and spline on to the older 2.5 (mine is a Phase I) with the stipulation that two of the dowel holes became bolt holes or something to that effect - is this true?

Also, will an older 2.2 Legacy (BC/BF) 5MT fit and spline in?

The transmission doesn't need to be super strong (my power goal is only 200hp/tq NA and I am going to have many of the internals cryo-treated anyway), and front final drive ratios are inconsequential for my application. I just need it to fit and drive like my current 5MT does.

Any help is greatly appreciated!!