whitch gets more hp for headers, 4-2-1 or 4-1?

[MrCrazy]

i dont know much about headers but i know there is diffrence hp gains when it comes the type of headers. i want to konw if 4-2-1 system will work best with my d16z6 engine. i just want more free flow for the exuast to get hp gain. Then after ill start thinking of catback

[Beastiek2]

http://www.automotiveforums.com/vbul...=4-2-1+headers

another thread where question was asked for quick reffrence
i also had same question i went with 4-2-1 ceramic

[MrCrazy]

so your saying that 4-2-1 system will work best with my type engine???

[mycivic]

Originally Posted by MrCrazy

so your saying that 4-2-1 system will work best with my type engine???

Yes.

[MrCrazy]

another thing, around how much of a diffrence will the 4-2-1 system get me??? i would like statistice if possible.

thanks

[Beastiek2]

Dyno test on DC's web page look there for graphs

good answer MYCIVIC "Yes." lol

[xproductionz]

i got 4-1 on mines... i would rather have the torque on the high end instead of the low end... i work with my high end mor than my low end.. but thats just me

[GScivic7]

yah, it's all a matter of preference. 4-2-1 gives more HP and torque where the Civic really needs it, but this is only good for when you launch or need to pass someone when you are in low rpm. I would get a 4-1 header if you like to drag. It would put the power where you'll use it the most.

[projectsilvia97]

sorry if this is somewhat off topic, but which would be better, a ceramic or stainless steel header? i heard ceramic cuz the stainless steel rusts easier or something. i could be wrong though.

[Ricochet]

Originally Posted by GScivic7

yah, it's all a matter of preference. 4-2-1 gives more HP and torque where the Civic really needs it, but this is only good for when you launch or need to pass someone when you are in low rpm. I would get a 4-1 header if you like to drag. It would put the power where you'll use it the most.

Works best with dohc vtec engines. On sohc non-vtecs, a 4-2-1 is the only way to go.

[GScivic7]

Originally Posted by projectsilvia97

sorry if this is somewhat off topic, but which would be better, a ceramic or stainless steel header? i heard ceramic cuz the stainless steel rusts easier or something. i could be wrong though.

neither will rust. Actually, the ceramic one has more of a chance of rusting cause there is a chance of the coating coming off, but that is so slight. The ceramic will also stay a little bit cooler than the stainless. Stainless is just for looks IMO.

[Beastiek2]

Originally Posted by GScivic7

neither will rust. Actually, the ceramic one has more of a chance of rusting cause there is a chance of the coating coming off, but that is so slight. The ceramic will also stay a little bit cooler than the stainless. Stainless is just for looks IMO.

100% right on that

[mycivic]

Originally Posted by projectsilvia97

sorry if this is somewhat off topic, but which would be better, a ceramic or stainless steel header? i heard ceramic cuz the stainless steel rusts easier or something. i could be wrong though.

Ceramic has higher resistance to heat compared to stainless steel thus keeping engine bay cooler.

[projectsilvia97]

Originally Posted by mycivic

Ceramic has higher resistance to heat compared to stainless steel thus keeping engine bay cooler.

so ceramic would be the way to go then eh?

[mycivic]

Originally Posted by projectsilvia97

so ceramic would be the way to go then eh?

IMO, yes.