DNPerformance or Megan Racing turbo Manifold?
Originally Posted by en1gma19
EXHAUST MANIFOLD != HEADER
Turbo cars do not have headers, it is an exhaust manifold.
Turbo cars do not have headers, it is an exhaust manifold.
The name header comes from the muscle car era, when guys would remove the stock EXHAUST MANIFOLDS which were cast iron pieces and replaced them with tubular steel piping units called HEADERS. Learn your terminology before spewing out BS to make other people look stupid, cause you might be the one who looks stupid afterall.
Last edited by XxBLACKMAMBAxX; May 31, 2005 at 09:58 AM.
dnp, had mine over a year now, no supporting brakets, all ok.. if you click on my pics tommorow youll see what it looks like over time.. all i can say is you better have a wire wheel brush and a drill.. its a pain to keep clean but all ss headers are.. if you have the extra money get it coated..
Originally Posted by XxBLACKMAMBAxX
You obviously have no idea what your talking about. This thread is about an AFTERMARKET HEADER. Almost all stock cars have exhaust manifolds, turbo or not. When it becomes custom tubular steel pipes welded together, its called a HEADER.
The name header comes from the muscle car era, when guys would remove the stock EXHAUST MANIFOLDS which were cast iron pieces and replaced them with tubular steel piping units called HEADERS. Learn your terminology before spewing out BS to make other people look stupid, cause you might be the one who looks stupid afterall.
The name header comes from the muscle car era, when guys would remove the stock EXHAUST MANIFOLDS which were cast iron pieces and replaced them with tubular steel piping units called HEADERS. Learn your terminology before spewing out BS to make other people look stupid, cause you might be the one who looks stupid afterall.
Originally Posted by en1gma19
EXHAUST MANIFOLD != HEADER
Turbo cars do not have headers, it is an exhaust manifold.
Turbo cars do not have headers, it is an exhaust manifold.
Last edited by Evo007; May 31, 2005 at 12:44 PM.
Taken from http://www.dougsheaders.com/exhaust_components/
"Exhaust Manifolds and Headers
The exhaust manifolds which come on a vehicle from the manufacturer are usually made of cast iron and have a different design criteria than the performance consumer desires. The vehicle manufacturer designs exhaust manifolds to remove the exhaust gases as economically as possible. They look at how quickly and easily the manifolds can be installed on the engine and how easily the engine, with the manifolds installed on the engine, will install into the vehicle. The performance aspect of the exhaust manifold is of minor importance in its design. As a result of these factors the standard exhaust manifolds usually consist of a common runner with each cylinder having a short runner that connects it to the exhaust port on the cylinder head. The exhaust header has a completely different design criterion. Performance is the main factor in the design of exhaust headers. An exhaust header utilizes individual tubes to extract the exhaust gases from the engine as efficiently as possible. The use of individual tubes presents some challenges to the designer. A quality header must be as efficient as possible and at the same time fit into the confines of the engine compartment, as well as providing ease of installation and maximum clearances to any heat sensitive accessories. Exhaust headers are manufactured using mild steel, or stainless steel tubing. The choice of the material to be used is determined by the application it will be used on. Later model vehicles, equipped with catalytic converter must use thick wall 14 gauge mild steel or stainless tubing in order to survive the heat that is generated by the engines exhaust."
Now that the lesson is over, can we get back on topic with how this product performs and sounds?
"Exhaust Manifolds and Headers
The exhaust manifolds which come on a vehicle from the manufacturer are usually made of cast iron and have a different design criteria than the performance consumer desires. The vehicle manufacturer designs exhaust manifolds to remove the exhaust gases as economically as possible. They look at how quickly and easily the manifolds can be installed on the engine and how easily the engine, with the manifolds installed on the engine, will install into the vehicle. The performance aspect of the exhaust manifold is of minor importance in its design. As a result of these factors the standard exhaust manifolds usually consist of a common runner with each cylinder having a short runner that connects it to the exhaust port on the cylinder head. The exhaust header has a completely different design criterion. Performance is the main factor in the design of exhaust headers. An exhaust header utilizes individual tubes to extract the exhaust gases from the engine as efficiently as possible. The use of individual tubes presents some challenges to the designer. A quality header must be as efficient as possible and at the same time fit into the confines of the engine compartment, as well as providing ease of installation and maximum clearances to any heat sensitive accessories. Exhaust headers are manufactured using mild steel, or stainless steel tubing. The choice of the material to be used is determined by the application it will be used on. Later model vehicles, equipped with catalytic converter must use thick wall 14 gauge mild steel or stainless tubing in order to survive the heat that is generated by the engines exhaust."
Now that the lesson is over, can we get back on topic with how this product performs and sounds?
Originally Posted by Evo007
This is what I have always heard. NA cars have headers and turbo cars have exhaust manifolds. My understanding is that headers travel from the engine block to the cat where exhaust manifolds travel from the engine block to the turbo or turbine. Even on all the performance parts sites they call them tubular maifolds etc. Not trying to get involved in a fight just voicing what I've seen and heard.
Originally Posted by XxBLACKMAMBAxX
You obviously have no idea what your talking about. This thread is about an AFTERMARKET HEADER. Almost all stock cars have exhaust manifolds, turbo or not. When it becomes custom tubular steel pipes welded together, its called a HEADER.
The name header comes from the muscle car era, when guys would remove the stock EXHAUST MANIFOLDS which were cast iron pieces and replaced them with tubular steel piping units called HEADERS. Learn your terminology before spewing out BS to make other people look stupid, cause you might be the one who looks stupid afterall.
The name header comes from the muscle car era, when guys would remove the stock EXHAUST MANIFOLDS which were cast iron pieces and replaced them with tubular steel piping units called HEADERS. Learn your terminology before spewing out BS to make other people look stupid, cause you might be the one who looks stupid afterall.
header and manifold are interchangeable... header stems from the fact that it comes off the cylinder head, it's the first tubes out of the engine... it heads the exhaust flow.
every car has a header/manifold. unless ti's running the cylinder head right into the atmosphere...
manifold is an engineering term, sadly adapted to cars because ti's always freakin' mistaken for the wrong ****.
Originally Posted by trinydex
why then do they call them tubular manifolds... and why then do they call them cast equal length headers?
header and manifold are interchangeable... header stems from the fact that it comes off the cylinder head, it's the first tubes out of the engine... it heads the exhaust flow.
every car has a header/manifold. unless ti's running the cylinder head right into the atmosphere...
manifold is an engineering term, sadly adapted to cars because ti's always freakin' mistaken for the wrong ****.
header and manifold are interchangeable... header stems from the fact that it comes off the cylinder head, it's the first tubes out of the engine... it heads the exhaust flow.
every car has a header/manifold. unless ti's running the cylinder head right into the atmosphere...
manifold is an engineering term, sadly adapted to cars because ti's always freakin' mistaken for the wrong ****.
that's absolutely good for nothing when everyone uses different terminilogy... use either interchangebly... and just specify... because you will run into cast long tube headers and tubular manifolds as terminilogy.



