Competition Clutch Uprated Sport Clutch Kit (3 Parts Stage 2)

Competition Clutch Uprated Sport Clutch Kit (3 Parts)
An ideal replacement for a worn out clutch on any 1ZZ or 2ZZ Toyota engine in the S2 Elise or Exige, Also as an upgrade for those with supercharged cars and track day enthusiasts.
Uses a sprung organic clutch plate, for engines up to about 280-300 bhp

Why use a standard parts when for the same cost you can have one of these uprated clutch kits?