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620 Posts
So Ive been told an opti should be changed/rebuilt or something every 100k miles at least...Well heres the question, What would you have to to do the new opti to make it work with your car? I mean do you have to time it or anything?? Or do you just unbolt the old one and put the new one on??? BTW the reason i ask is, My car is starting to idle a little funny sometimes like 50 to high or 50 to low so the opti will be the first thing i change in a month or so.