ok guys i'm a little confused on this, i have a 00 si and i'm putting in a new motor. its a b16head with b18c block, the motor came with a P06 ecu. now i've heard different things on this. i know i need a conversion harness from obd2 to obd1, but am i better off getting a P28 or can i really just chip or mod the P06 to a P28? thanks ahead for the help.