YO check this out
http://www.hadamotorsport.com/tech/review/dsemc/
seems pretty helpfull
pay attention to the factory original header off a 2000 Acura EL 1.6
ITs almost as good as ALL the other headers
IMO i like the CHIKARA, the DC SPORTS and the LAND SPEED POWERCORE good eye GUys
u called all 3