flat4 to the floor

hi all just need a little info and advice
i have a p reg uk spec impreza and want a bit more power(dont we all)
now the question i have is this,i have the 3 plug ecu at present and wanted to know if i was to just get hold of an sti ecu with the 3 plug would this be ok to do a straight swap over or would other things need to be changed as well. the engine is on 124k so dont want to start going down the big £££ route untill this engine is dead.any advise or info welcome.thanks.

M535I

as long as you can get an sti version that fits it will be pretty straight forward but........... you dont have the supporting mods an sti has i.e diffrent turbo,injectors,etc etc so you might be owrth wile just moding yours and getting it mapped if possible .

flat4 to the floor

m535i many thanks for your reply i had thought that was maybe going to be the answer.ref inj turbo etc.how about an apexi ecu on standard turbo and inj with straight through pipe and different air filter?worth doing or not?thanks karl

Marx Mcrae

iTrader: (4)

Dont bother with an STi ecu its a waste of time!
You cant remap your current ecu so your gonna need to swap it for something like a Gems, Apexi power FC, Simtek, Link etc, that way you can get all the settings i.e ignition, fueling, air etc just right.