sir222

hi i have a civic eg6 b16a sir2, i wondered what is the best header to go for, is it a 4-2-1 or a 4-1, im kinda new to this so your help would be apprieciated....also is it best to go for a real expensive brand or cheaper etc

cheers josh

deckster333

iTrader: (1)

save up and get a really good one, but first SEARCH the archived threads!

ralphie14

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sir222 &raquo;</TD></TR><TR><TD CLASS="quote">hi i have a civic eg6 b16a sir2, i wondered what is the best header to go for, is it a 4-2-1 or a 4-1, im kinda new to this so your help would be apprieciated....also is it best to go for a real expensive brand or cheaper etc

cheers josh </TD></TR></TABLE>

I would look to pay at least 250+ for a good header and 500+ for a really good one. You typically get what you pay for so if you go cheap you get cracks and cheap all around. If I recall 4-1 is the better of the 2 but it takes up more room under the car so if you are lowered you will scrape even more than normal.

slowSOHCvtec

depends if you want midrange or high RPM power to decide between 4-2-1 and 4-1, go for the more expensive brand your gonna end up paying for two cheapass ones when they crack, just do it right the first time

sir222

ok thanks guys, yes it definately takes up more room under the car... so as im jus drivin the streets, would it be best goin for the 4-2-1 or the 4-1, what does each one do for power gains? (i.e lower rpm or higher rpm)

cheers

sheBangZ

iTrader: (7)

get a 4-1. b16's make most of their power top end and they are very peaky motors. and 4-2-1 are more for midrange-low end power. i gree with the guys about doing it right the first time, but if you want cheap but ok quality, go for the megan racing 4-1 as i have it on my car for about 2 years now with no problems.

GottaLoveHondas

4-1 w/2.5" collector felt pretty mean on my brothers old hatch so thats what i would recommend to you, but as stated, it depends on what you want to get from it.

ssbpturbohatch

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GottaLoveHondas &raquo;</TD></TR><TR><TD CLASS="quote">4-1 w/2.5" collector felt pretty mean on my brothers old hatch so thats what i would recommend to you, but as stated, it depends on what you want to get from it.</TD></TR></TABLE>
Thats my car your talking about , i had the 4-1 w/2.5 collector on it/ that along with my jdm lsd w/4.78 final drive pulled pretty damn good. Now i'm gonna run the same header on my new set up, then i'll get my sis's(GottaLoveHondas) opinion again, soon as i test it out

sir222

ok then thanks very much everyone.

to get the megan header, i think its on all usa web-sites. thing is im in the uk and the usa civics are called different things. so if i wanted to order a header am i right in thinking i should get the one that fits the SI and that would fit my sir2 from japan??

thanks

sheBangZ

iTrader: (7)

get one for any b16.. I'm using one for a 99-00 civic si in my eg and it lined right up with my cat, but its an aftermarket cat so its 2.5 inches. if anything bring it to a muffler shop so they can just put a flex pipe there and weld it with the rest of your exhaust. 4-1 2.5 makes the b16 feel realli good in the high rpm.

b20vtecda9

IMO...4 to 1 &gt; 4-2-1

G2 Speed

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b20vtecda9 &raquo;</TD></TR><TR><TD CLASS="quote">IMO...4 to 1 &gt; 4-2-1 </TD></TR></TABLE>

your an idiot

allaboutdaz

any dyno sheets?

G2 Speed

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by allaboutdaz &raquo;</TD></TR><TR><TD CLASS="quote">any dyno sheets?</TD></TR></TABLE>

it has nothing to do with dyno sheets, it's more to do with were you need the power.. down low or up top...

also, to do with clearance on lowered cars

Voyage34

its as much the design of the header, tube diameter, primary& secondary length, collector etc as it does on it being 4-1 or 4-2-1.
there was a thread a while back where smsp posted graphs of 2 headers he built, one 4-1 and one 4-2-1. because of how they were designed and built the 4-1 had more midrange than the 4-2-1 and was weaker on the top end.

that being said, IN GENERAL, with off the shelf headers, 4-1 will make more top end and 4-2-1 will make more midrange.

sir222

okay thanks. yor all a gr8 help thanks

one other thing i wanted to know was what the best sounding, value exausts are out there for my car, i wanted an angled exit if possible as these look wicked. drift style!

cheers guys

G2 Speed

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sir222 &raquo;</TD></TR><TR><TD CLASS="quote">okay thanks. yor all a gr8 help thanks

one other thing i wanted to know was what the best sounding, value exausts are out there for my car, i wanted an angled exit if possible as these look wicked. drift style!

cheers guys</TD></TR></TABLE>
bhaahahhahahahahahahhahahahahaha

The sound has alot to do with engine, and "head gasket back"

Some people like raspy.. some like a deep tone..

but I'm sure you will like raspy, with the wicked drift style

black_EM1

Drift style? Has "that" franchise claimed another one?

Only angled one I know of is the King of All Cannons, the N1

Just get something like a Apex'i WS2. You'll thank me later.

Sleepy_Red_hatch

get a type-r or GSR bottom end and keep the stock exhaust manifold, you'll cee way better gains for the price of an expencive exhaust manifold. combine the two things for even better gains.