Competition Clutch Uprated Super Sport Clutch Kit (3 Parts)

Competition Clutch Uprated Super Sport Clutch Kit (3 Parts)
An ideal replacement for a worn out clutch on any 1ZZ or 2ZZ Toyota engined Elise or Exige, Also as an upgrade for those with supercharged cars and track day enthusiasts.
Uses a sprung Cerametalic clutch plate, for engines over 280 bhp, As used in our own SC Exige track car

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