Daggoth

07 Basic Rx-8 45,000mi past couple of weeks my car has been making a weird clicking noise (not every time) when I push the clutch in and if it isnt in for like half a second before I shift somtimes it still happens but if I shift slower it reduces it. Any help would be greatly appreciated and would like to know if I could do this repair myself I took it to dealer not 3 weeks ago they didn't hear any noise and when I got it back I still heard it. They said they didnt hear anything other than normal shifting noises and this isnt normal. I have th extended warrenty but its Powertrain.