Hi guy's,

Bit of background - relative newb on perth-wrx, but a bit of a suby forum-whore in general. This question relates to my twin turbo, B4 Lib.

If I was to (hypothetical only at this point) do a twin turbo -> single turbo conversion, would I be able to use a wrx or wrx-sti EJ20 single turbo ECU?

How difficult would it be to replace said ECU? Would the new ECU need to be completely rewired into the car?

Obviously it would need a re-tune after installing, but i'm talking purely about the ECU's ability to do the job needed.

I know its a long shot asking on a wrx forum, but I'm struggling to find a good answers elsewhere. Any help would be appreciated.

Thanks blokes! (and maybe ladies).

- Alex.