What is a "header"?

[Mr. Chocolate]

Like i said my english isnt state of the art and theres all this talking about "headers", can someone explain what this thing is, what the gains are and off course the costs and best types. Thanks.

[vvtlikick]

Tubular exhaust manifold.

[00bluegts]

it depends on if u have a gt or gts, hotshot is best for gt and trial for gts. it mounts on the block of the motor its the first thing exhaust goes into when exiting the motor.

[EzRidA]

A header aka exhaust manifold. It channels all the exhaust from the four ports into one pipe. The end of the header connects to the rest of the exhaust system.
http://store1.yimg.com/I/titanmotorsports_1780_10575845

[vvtlikick]

Technically, I think to be a header, an exhaust manifold has to be a bunch of pipes welded together. If its' a cast block, it's just a manifold, not a header.

[EzRidA]

Header is the term we've come to use, but the technical term is exhaust manifold. The word header comes from attaching on the cylinder head.

[SilverRide]

To clarify things just a bit more, an exhaust "header" has come to mean an exhaust manifold usually made of welded tubular steel that has been designed and "tuned" for performance.

[yuloose]

Header = set of mandrel bent pipes

Exhaust Manifold = cast iron unit that functions the same with added weight and more restricted flow

[vvtlikick]

I would say a header is always an exhaust manifold. But not all exhaust manifolds are headers ;)

[yuloose]

Originally posted by vvtlikick
I would say a header is always an exhaust manifold. But not all exhaust manifolds are headers ;)

that may be a better definition

[EzRidA]

I'll go for that definition. :thumbup:

[Mr. Chocolate]

Allright thanks alot fellas! I drive a GT-6speed btw, so i would be best of with a hotshot? what are the gains and how much does it cost? Greetz.

[yuloose]

for your info. you dont drive a GT 6speed

you either drive a GT 5spd
or a GTS 6 spd

[vvtlikick]

Technically, he doesn't have a GT or a GT-S. He has a Euro Celica, powered by a 1ZZ-FE and mated to a 6 speed, but with different ratios than close ratio 6 speed the GT-S has.

[Mr. Chocolate]

My info tells me i have a 6-speed (GT), the celicas sold in europe are all 6-speed cars and we have 3 types sold: the regular, the type-S and the T-SPORT (same as GT-S only with 192hp) i drive a type-S (comes with 16 inch GT-S rims, ABS, leather staering wheel and shifter, only difference here between a GT type S and a T-SPORT is the engine block).

[yuloose]

sorry dude

didn't see where u were from

[Mr. Chocolate]

Thats allright dude.

[F22-Raptor]

Go with the Hotshot..

[F35-JSF]

Originally posted by yuloose
Header = set of mandrel bent pipes

Exhaust Manifold = cast iron unit that functions the same with added weight and more restricted flow


:werd: