Originally posted by enayce
i always understood 4-1 headers are better for turbo'd or supercharged, etc and 4-2-1 for naturally asperated (sp?)
as far as the dc sports header goes,
anyone else seem to lose a good amount miles per gallon after having them installed? a friend of mine had them removed because he could barely hit 150 miles on a full tank of gas.
umm...you dont have a header with a turbo. you have a turbo manifold.
as for 4-1 being better for sc, i've heard the best header for the jrsc is the kamikaze 4-1