difference between header and manifold on the 5sfe motor Options

[94celica_jdm]

for those who already have headers for there celicas, i just want to know how much hp gain and the overall power you felt compared to the stock exhaust manifold.

This post has been edited by 94celica_jdm: Oct 14, 2007 - 6:34 PM

[Hanyo]

this is a pretty pointless thread.

there is no 100% way to tell how much hp you will gain from one single upgrade.

You can install the same header on two different motors and they will give different hp increases because of engine heath and climate.

Especially if the two different engines have other supporting modifications. I can rant on and on about different upgrades and what not, but the main issue is there is NO certain hp increase.

Is there a noticeable HP increase? maybe? "noticeable" is varys from person to person.

Some people swear they feel the difference by installed a short ram intake, others complain about the noise.

Should you get the headers?

I say yes, you will not gain major ass kicking hp and become a driving god. But it will definitly get some engine bling and a better exhaust note, and if your lucky maybe 1-5 hp...