I just checked their site and it's still being offered for our cars. If you need power now contact them. new specs here.
http://infinitas.co.za/
Chrysler
Crossfire3,2 l - Coupe/Roadster 221 kW (300 HP)/385 Nm
Note: The Chrysler Crossfire kit uses the ASA TM I-17 supercharger and excludes the intercooler.(more info)