my 98 has turned totally into a kid car. 18 and 16. They love it. They have slowly destroyed it, but i know they are safe. I might try to bring it back to its glory someday.
i drive an outback now lol.
2.3-2.4 is just a larger engine. p2 Rs were 2.5
not sure about Japan spec. but the manifold upgrade is often referred as JAPANIFOLD.
different sized turbo's used in different years. P2s had a KKK24
twin mufflers tend to flow better