My friend was recently doing some burnouts with the ebrake and about hour after that his clutch got messed up. He installed an Exedy Stage 1 clutch about 1500 miles ago. Now when you turn the car on/cold the clutch is extremely stiff, like there is a brick holding it back and after it warms up a little it gets soft but halfway down while depressing the clutch it gets like ACT/harder. It still grabs fast and low but when you lift off the clutch it sticks for a split second, what can be the problem?