in regards to headers, what does the 4-2-1 or 4-1 mean?
#1
in regards to headers, what does the 4-2-1 or 4-1 mean?
My friend is a mechanic and told me that headers won't do much for power, maybe a 5% increase unless I have an intake, which I do. He said a good intake will add maybe another 10% increase and if you do a computer remap, which I haven't, that might add another 10% in power. I have a 1995 Honda Civic EX 1.6L. Are there headers out there for my Civic or are they even made? If not, could I have them custom made for my car? Thanks. And the 4-2-1, 4-1 question. I read the I/H/E thread, but I don't know what these numbers mean. Thanks.
#2
RE: in regards to headers, what does the 4-2-1 or 4-1 mean?
4-2-1 means the pipes go from 4 pipes one for each cylinder to 2 pipes then to 1 pipe out to the cat
4-1 means the same ting but they go directly from 4-1
4-1 means the same ting but they go directly from 4-1
#5
RE: in regards to headers, what does the 4-2-1 or 4-1 mean?
4-1 is better for top end
4-2-1 is better for mid-range power
and i dont think remapping your ECU would do much, definitely not worth how much it would cost
4-2-1 is better for mid-range power
and i dont think remapping your ECU would do much, definitely not worth how much it would cost
#6
RE: in regards to headers, what does the 4-2-1 or 4-1 mean?
ORIGINAL: FlipHKD720
4-1 is better for top end
4-2-1 is better for mid-range power
and i dont think remapping your ECU would do much, definitely not worth how much it would cost
4-1 is better for top end
4-2-1 is better for mid-range power
and i dont think remapping your ECU would do much, definitely not worth how much it would cost
#7
RE: in regards to headers, what does the 4-2-1 or 4-1 mean?
ORIGINAL: warner_ro
thye make headers for your car. either 4-2-1 or 4-1. for your car get the megan racing 4-1 race header.
thye make headers for your car. either 4-2-1 or 4-1. for your car get the megan racing 4-1 race header.
#8
RE: in regards to headers, what does the 4-2-1 or 4-1 mean?
i have the megan racing 4-2-1 header for my 98. it's the same exact model that would fit your 95 and it is definitely worh it.
i would say go for a 4-2-1; civics can always use a little more low end power.
i would say go for a 4-2-1; civics can always use a little more low end power.
#9
RE: in regards to headers, what does the 4-2-1 or 4-1 mean?
HEADER...HEEEAD-ER. ffs. Yes, the header for your car wont add to much, maybe 10 hp. More with an intake probly. I dont know about the ECU remap for your model and year, but for the 07 civic si, reflashing the ecu is intense, V-Tec kicks in at 4500 rpms, about a 25 hp gain
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