Found these motor bulders http://www.rbracing-rsr.com/ they are taking about 350 and up 500HP motors. Yeah the 500hp motor would not be street . But really thinking hard about getting one!!
Newly Redesigned Turbo Kits for 2006
Note: For custom frames with 40 degree rake center mount turbos with center mounted intercoolers are available. For standard frames all turbos are left mount with right mounted intercoolers._N__Note:N______Note
Mate.... That's for just the Turbo kit alone! They make awesome chit, but have priced themselves out of the market, plus they have a really chitty customer service record for their exhaust systems. Aerocharger turbos or Procharger supercharges are a far better option.