Originally Posted by Frank@PSI
G-Power, who exclusively uses ASA superchargers, retain the centrifugal clutch on all their current supercharger kits; including the E9X M3 kits.
I'll grab a picture of an install we're doing at the shop and take the pulley off the blower to show some detail.
That is cool, ASA blowers are very good. I loved my AA kit on my E46 M3.