just bought one of these. noticeable gains?? not fitting it for a while as car not on road at present.

 

Had one in my 93wrx and it went like a stabbed rat compared to the early wrx ecus but it gave my car a MAP sensor fault so I had to remove it ,however quite a few people have run them in early wrxs with no problems what so ever.

 

6k ecu??

 

I have a z4 ecu as a spare..what do I need to run it in my wrx wagon (my95)

 

yeah ill be keeping hold of my z4 in case of problems. have heard good gains from these. boost goes from 0.8 to 1.1 bar.