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RB25 with twin exhaust

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I am just putting this out there for comments.  Anyone have any thoughts?  I’d like to run this exhaust on my RB25 powered restomod...it’s twin 2” pipe from collector to tips.  With twin 2” pipes that provides  6.283 vs 7.068sq inches for a 3” single.  It’s slightly less area but I wonder how it would flow otherwise.  Any experts here?


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