Was wondering what the average mileage people are getting out of their T45's. I have 146,000 miles on mine now and after I installed a S/C there is a howl from it that is much more noticeable now. It happens when Im on the throttle, wondering if 330hp and 340tq is too much for it. I so wanted to put on the 9psi pulley. Guess I'm stuck with the 6psi one for now..

 

I would say that you're overdue for a replacement.