[ronster]

Not to belabor a point but at what point do you draw the line at "preventative maintenance" and throwing your money away needlessly replacing parts that still have a lot of miles left on them. When I first got my Boxster it was 10 years old with 74K miles on it and the first "Porsche trained" mechanic I took it to told me I needed to replace about $5K in parts because they would be worn out by then and it was good preventative maintenance to do so. I decided to wait and so far, over 20K miles so far, the only thing I've replaced was the water pump and it was not on his list, the rest is working just fine on the street, on the track and AX. As someone here pointed out it is a matter of personal preference (or paranoia) to preventatively replace parts and honestly is that a decision you want others to make for you?