im thinkinh about the swap. what im i getting myself int

[bonundy]

i wnt to swap the 2.5l in for the pos 1.8. Will i need to replace the tranny as well, or cann i use the stock. If i do have to replace it i think im just gonna go for the 2.0 l swap. DOes anybody know if there is a 2.0l turbo out there? if so let me know