Quote:
Originally posted by hondaman-iac
ok then what is the difference between a manifold and a header ????
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I think BDC said this one best... Headers are for your head not your car...
A header is an aftermarket exhaust manifold made from tubing instead of being cast. It generally flows better, and with proper design, can help low end torque and high end power on a naturally aspirated car (not turbocharged). On non-turbo cars, it's usually the best way to add a turbo into your exhaust system. Factory turbo cars rarely see real benefits upgrading to a header over porting their stock manifold.
So from this definition the only difference is the name..