Johnny sti

Really really want to upgrade the ecu on my 1993 wrx import. Have been told about a z4/z5.
I dont have any idea what these are meant to do(gains over original. Diff between z4/5) but as im getting one asafp, i should really know what to look for!
As per usual, doing things backwards!!

Johnny

borich

i been told that a ecu out of a 95 wrx has much better mapping around raises the car boost and bhp to 260 bhp?

Borich

Johnny sti

Thanks mate.
Is that a z4 or z5 do you know?

Dave R

You want a Z4 from a 95/96 car.

Had one in mine. Ace.

borich

if u put the z4 ecu in your car and then a scooby ecu will that give better perforamnce over a 93wrx ecu with a scooby ecu?

Borich