lifters

So here is the story. My engine was replaced at ~90k due to the rod bearings being worn so bad they were knocking. Reason being i had upped the boost to 1 bar (15psi) and it had put additional stress on the internals. The job was done at a Mazda dealer in Riverside CA. I had an extended warranty...

I have been looking for people who have changed valve train on the msp I have found little to no info on the subject. Is it because the stock valve train is fine or just overlooked? can anybody shed some light on this subject? PS. Im wondering if anybody is the original owner of my car Its a...