I replaced my serpentine belt a few months ago, and lately when I start my Boxster I get a squeel. I did not replace any of the belt tensioner bearings. My Boxster has 68,000 miles and I know from previous belt replacements, something usually will go bad not long after. New belts are very tight and put a lot of stress on a part getting ready to go bad. Which part do you think it is. Me, I was waiting for it to get constant so I can hear exactly which part it is.