Valhrdtop6

hi everyone,which engines can i use to replace my s8 d2 2000 engine with,i have been offered a low milage a8 d3 2004 engine, both are from automatic cars,do i need ecu from donar car?, any advice will b most appreciated, thankyou Andrew.

KevinGary

Welcome to the forum. There is very little traffic on this board. You may want to post your question on the A8 board.