We are also running an Xtreme HD organic on the GC8 but with a 6 speed. I prefer this clutch over the stock one. Life of the gearbox depends on how you drive it.

Currently on my second Xtreme clutch in the Honda as well. Was HD organic, now HD 6 puck. No complaints.

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MY00 WRX. 89 Prelude. 99 CRV