Fair point on the resonatorless ones, will they be straight through, as in no baffles? 2 or 2.25 " would actually be a step down from the stock piping size.
Stock piping is 2 3/8 inches or 60mm. That being said the fujitsubo and kakimoto center sections are both 62.5mm/2.5".
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can have them made in 2.5 if you want, but thought this might loose inital torque?...
and NO there won`t be any baffles... posting to you would be a pleasure!!