Something I found out today is that the short block that you will get from Subaru to replace your STi short block is not an STi engine at all... it's a WRX engine and has no forged parts. Subaru lists this part 10103AB470, as a replacement for STis from 00 to 07, but if you give them a license plate for a v5 or v6 STi they will also tell you that this part in the replacement short block. It's no wonder that it costs less than $3000... a forged short block for $3000 is just too good to