Makes no sense why a new clutch should slip after break in period of 600 miles. The first time out new clutch pressure plate, slave cylinder, fidanza flywheel etc. Slips bad in the upper rpms. Did I mention that the pedal disengages at the top. You can barley put your foot on the clutch and it starts to disengage. I talked to the guy at ram and he said that 600 miles on that flywheel isn't going to amount to anything he said if you see any spots on it just take a piece of sandpaper to it. Three clutchs doing all same thing. Makes we wonder. We will find out soon enough when the oem comes in friday. Then we will start to measure thickness and what not.