Header, Intake, & Exhaust Custom Exhaust? New Headers? Need Opinions on Intakes? Discuss making your ride breathe better here.

header question

  #1  
Old 10-12-2005, 11:05 AM
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whats the difference betwean 4-2-1 and 4-1 headers.
 
  #2  
Old 10-12-2005, 11:15 AM
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Default RE: header question

ORIGINAL: dj_ipirate
whats the difference betwean 4-2-1 and 4-1 headers.
4-2-1 go from 4 into 2 pipes, then into 1 (street driving)
4-1 go directly from 4 into 1 pipe (usually for racing)
 
  #3  
Old 10-12-2005, 11:17 AM
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Default RE: header question

heh heh, did you try searching for this topic?
 
  #4  
Old 10-12-2005, 04:06 PM
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Default RE: header question

i know what they look like but performance wise.... plus why do people tell me to do 4-2-1 if its a daily driver? wouldnt it be the same either way?
 
  #5  
Old 10-12-2005, 05:41 PM
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Default RE: header question

4-2-1 is designed for low to midrange gains, and 4-1 is designed for top end gains, the difference between the two is like 1-3 hp and like 1-2lbtq.
 
  #6  
Old 10-12-2005, 06:23 PM
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Default RE: header question

thanks bro thats what i was looking for.
 
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