My 2004 Outback 5sp has 302,000km on it and the engine is very tired. It uses slot of oil (although does not seem to blow smoke) and is down on power.
I have never pulled a boxer type engine apart so as thinking maybe a2nd hand engine might be the go. Which of the EJ25 engines is suitable? Could I put a later generation engine in? Would it be plug and play or would I need to replace the computer and other stuff?
Is there anything special about rebuilding or of these engine? Special tools or techniques?