Hi, I am after a carbon roof spoiler for my Honda civic ek 3 dr hatch and have came across various different manufacturers. Some of the ones i have come across i cant quite tell whether they have more lift then the standard Honda one. Some are called duckbill but I am not sure if its only these ones which offer more lift. If anyone has bought one could you tell me what make and if its more lift then the standard version. Thanks Jason.