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

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

Post by cooler » Tue Feb 11, 2020 10:09 am


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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