I would like to know how much louder the engine bay noise is with headers, with or without heat shield on. Not the exhaust sound, but actual noise through the metal headers as opposed to the cast iron stock ones. TIA
I would like to know how much louder the engine bay noise is with headers, with or without heat shield on. Not the exhaust sound, but actual noise through the metal headers as opposed to the cast iron stock ones. TIA
The stock ones are not cast iron, but tubular steel (at least on the Zetec). I noticed no difference in engine compartment noise with my long tube header.
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