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I had 10,000 miles on mine and they had a lot of meat left... except the rear outer edges from the track weekend. The fronts were OK since I have -2 camber dialed in.
I think getting an alignment helps and ask for 0 toe front and rear.
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Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires." 
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