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Is it true that the last Royal 46's were the same as the mecoa 46's?? Some guy on RCU says they ae the same. I tought all mecoa engines were made in the US.
So what is the answer to the question and do they all share the same bolt pattern with the Royal. I'm trying to cross reference the mecoa 46 with something that Macs lists so I can order the correct header for a tuned pipe installation.