header question
#2
10-12-2005, 11:15 AM
RE: header question
ORIGINAL: dj_ipirate
whats the difference betwean 4-2-1 and 4-1 headers.
whats the difference betwean 4-2-1 and 4-1 headers.
4-1 go directly from 4 into 1 pipe (usually for racing)
#4
10-12-2005, 04:06 PM
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
10-12-2005, 05:41 PM
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.
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