wuts the difference between 4-2-1 and 4-1 headers?

 

I think 4-2-1 the mid range is better, 4-1 is more for the end.

 

whoa, i just saw the advatars and i didnt look at the names yet, and i thought this guy was talkin to himself!! lol

 

its the way the headers are built, a 4-2-1 header goes from 4 tubes to 2 tubes to 1 tube. 4-1 headers go from 4tubes to 1tube. 4-2-1 headers are usually 2 peice also. 4-2-1 headers allow for more of midrange power. 4-1headers are for higher rpm uses. They allow better flow at higher rpms.