which header would work best and the right price. ceramic or stainless steel. im thinking about just getting the obx ceramic header. where as dc sports is a little much when there the same thing. is the performance different in the stainless steel header compared to ceramic coated and obx or megan or dc sports or just a cheap ebay header? and when i get it is it the right fit or do i have to have the piping altered a lil bit?