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Originally Posted by Orange whip 04
Oh i wouldnt go that far to say that. I just cant justifie the time and money for the little horse that headers give up these days. Esp for the average street mach dirver. I can understand people that use headers when you are drag racing for living but not for an average daily driver. I can see mid pipe and cat backs replacments becuase they do give up horse and torque and they are relatively easy upgrades. Most of the restrictions are further downstream with cats, pipe size, and restrictive mufflers. Its more important to remove those restrictions than some minor curve imperfections within the exhaust manifold. Dont get me wrong, i think headers help but not to the extent that some people think at low end rpm. Which doesnt help the average daily driver. yeah the headers work better at higher rpm than lower, but again how offten is a guy doing to be driving his mach at 6800 rpm? And if you like spending 12 hours of your day replacing manifolds for headers... more power to you.
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Have you ever port matched headers to the cylinder head exhaust ports?
There is a lot of torque with long tube headers. If you don't have the balls to install them then don't worry about the gains....
Anyone that does a long tube header install has my salute.. A true American muscle car bolt on!!!!!