tell us how it is..im considering the exedy twin clutch or SPEC stage 2.

 

is it absolutley necisarry to replace the throwout bearing when replacing the clutch with an aftermarket? If the oem bearing is still in good condition.

 

Strictly speaking - no, but why not replace it anyway? It's relatively cheap compared to the clutch and the labor to install a new clutch, and if it goes bad you're going to have to go back in, which is a significant amount of work. It's just smart to do it while you're there. A bad throwout bearing can cause big problems. Exedy highly recommends it because it can ruin your day (and your brand new clutch) if the old throwout bearing isn't working properly.

 

+1