hello,every one i'm new in this forum.my name is paul from ipoh.two month ago i bought e36 318i for my wife and i thanks for my wife who drive it until overheat and burn the engine cylinder head .so i got no choice to replace one half cut engine from the chop shop m52b20 ,and the car was just ready few day but when i test drive the car,:stupid: i feel like my m40b18 exhaust no match to this 6 cylinder engine ,i hope to get advice from all sifo here.thanks in advance!