then its up to u to decide lo....
changin 4g13 to 4g15 is virtually getting the same engine...
if u think spending 3k++ for it is worth then go ahead la......
for me....
i'd rather do up this 4g13....
or change 4g15 block....
do overhaul, port n polish.....
again...
its up to u....
its ur car....
its ur decision.....