I currently use dc 4-1 with b16a2 and i and can pick up a comptech header 4-2-1 for 2 bills. My question is would I gain or loose any power buy using this header? I know 4-2-1 headers are supposed to be good for midrange power but with this header will I loose some top end? I was thinking this header would be good for the street and daily driving but what about at the strip? I have aem and skunk exhaust and will be doing cams soon so i just want to know if its worth changing or say f$$k it and just put cams and keep the dc? thanks