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Discussion Starter · #1 ·
I had a Two Bros Racing exhaust on my '01 Speet Triple and I constantly had decel popping. I found a carbon fiber Yoshimura slip on on Craigslist, replaced the Two Bros pipe and instantly the decel popping was gone.

Does anyone know why changing the slip on resolved the popping?
 

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changing the can will change the air/fuel ratio, which may have been off when you had your two brothers on.

you could have been running lean (not enough fuel for the amount of air) with the two brothers on...causing the popping on decel and now the new exhaust has richened up your mixture.
 

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Why would you want to lose the popping on the over run, I love that sound :)

Each to thier own I suppose
 
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