anyone had this problem before? it happens on any gear from 5krpm and up. it sounds like a belt slipping or a bad trans throw-out bearing. the car is not loosing power but its freaking irritating.
I replaced the throw-out bearing and ruled out a bad turbo (replaced the unit with another one). Im suspecting the t-belt tentioner, but I want find out if anyone had this problem before- thanks -ed

 

So it wasn't your intercooler fan?