You can always put your own custom kit together.
Just get a manifold from Treadstone or Steed Speed and buy the other components seperately. The charge air pipes are simple to fabricate and any decent exhaust shop can tie the turbo and wastegate in to the exhaust system. The biggest problem is tuning but I heard somewhere that the stock computer will actually deal with 6psi anyway. After that you can probably get AEM to supply you with a piggyback to fine tune for higher boost.