The Stage 3 clutch came as part of the kit, the part that bought the car alive was the lightened flywheel, the difference was huge.
Yes i adjusted the Exhaust Cam timing, you cant go more than -8 degrees but you wouldn't want too. Adjusting the timing of the exhaust cam basically pushes your powerband higher up the rev range so the car pulls hard all the way to the red line which was 7750 on mine.
You may bog down a bit trying to launch at low rpm but if you give it a good amount of revs before dropping the clutch you went off like a scalded cat.