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Header
I went to a engineer who builds stainless steel headers for cars here in Thailand. The engineer told me there’s no need to change the header on the Jazz / Fit as it is already very good. He said all that was needed is the pipe and tail pipe to make a massive difference. Apparently there’s no need for the Catalytic Converter as this only disturbs the air flow and creates back pressure which puts more pressure on the engine resulting in lower performance
Can anyone confirm this.
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