My turbo has failed and as far as i know theres a turbo dynamics 446 on it stage 2.what replacement can i get instead of the above ?car is remaped .where can i get a recon unit from to bolt on.its an asz engine i think its march 2005.

Just get that dead turbo rebuilt, a new CHRA will see it as good as new, then you don't have to muck about with the mapping, it'll be plug and play.