Exhausts 4/1 or 4/2/1 better?

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cooler
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Bike Make & Model: R1

Exhausts 4/1 or 4/2/1 better?

Post by cooler »

Folks,

Checking the pipes for rust the other day and I noticed that one of my Yamahas has a 4/2/1 exhaust configuration, whereas the other two have ...login to view the rest of this post



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