so my wrx engine is finished and ready to go into the leggy, only thing is the ecu.the wrx ecu is 3 plug and the leggy is 4, so can i just plug the wrx ecu into the leggy loom and not worrie about the 4th plug? Or how do I go about this?
Hmm.. I'm going to he honest. I'm not sure. Maybe you won't have to merge the harness. Wait for John to post a reply in this thread. He has experience with te twin turbo motor and has done a lot of wiring.