Originally posted by dantastic
header = exhaust manifold. its just symantics
the stock header looks like sh!t anyways.. i'd rather stare at the heat shield. the one omy accord was silver, it looked fine. you can paint it with hi-temp paint if u want.
ive heard stories of their stock headers cracking b/c they removed the heat shield. dunno if its tru tho. they couldve just hit something on the road
no, it's not just symantics. if they were the same why would you need to buy a header to increase performance?
The idea behind an exhaust header is to eliminate the manifold's back pressure. Instead of a common manifold that all of the cylinders share, each cylinder gets its own exhaust pipe. These pipes come together in a larger pipe called the collector. The individual pipes are cut and bent so that each one is the same length as the others. By making them the same length, it guarantees that each cylinder's exhaust gases arrive in the collector spaced out equally so there is no back pressure generated by the cylinders sharing the collector.
bottom line. manifold=lots of backpressure, header=little back pressure. there
IS a difference.
i think this quote from Ben franklin fits here. "it's better to let people believe you an idiot than to open your mouth and remove all doubt."