yea you would smoke him stock to stock. the automatic DSMs have smaller turbos. instead of the powerful 14b the manuals have, the auto came with the underpowered turbo which must be upgraded. as for the 4g63 motor it is plenty reliable, what do some people expect when you have a DSM with well over 100,000 miles on the stock motor that you know for the most part has usually been raced out already. although there are plenty of people still out there with stock 4g63's over 100,000 miles that still run in the 12's! The 4g63 responds brilliant to mods. By experiencing my 1992 talon awd, when a 6 bolt is rebuilt and especially with the right parts i believe its superior than the EJ20 turbo rex motors. Although i love my WRX now i miss the my DSM !!