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Legacy - Why Dual Exhaust?


Edgemar

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Wonder how the Magnaflows sound on the MS6. Looks really nice!

<-- I love Winky, my "periwinkle" (ABP) LGT! - Allen / Usual Suspect "DumboRAT" / One of the Three Stooges

'16 Outback, '16 WRX, 7th Subaru Family

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One larger exhaust flows more than two smaller. No question, while maintaining backpressure. The flow is turbulent on the walls of the exhaust, therefore the larger center area promotes more flow. The is more sidewall on duals thus creating more turbulence. Just a fact, I remember some physics.

 

From a factory setup though, in a sedan aimed more towards the older crowd, two smaller exhausts will flow more than one small exhaust...

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