I bring this to the board of knowledge here. I do not have knowledge of Subaru personally, please help me. I have a 1996 Legacy Outback with a 2.5 and it has 236,000 mi on it. I just purchased it with the knowledge of it having problems. At least 1 and 3 valves are bent, 2 and 4 have 160 psi compression. It does run! Just not well. If I'm going to pull this motor for the repairs...I'm going to rebuild it. The question I have is...Do you have to Bore the Cylinders at 230,000 or are you just honing and buying rings. Every machine shop here acts like they have never done it.